From fd76f31953d807401178c69e72bbe41b7d35e115 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E2=80=9C=E2=80=9Cshijing?= <“1378914240@qq.com>
Date: Mon, 6 Sep 2021 11:10:44 +0800
Subject: [PATCH] markandface

---
 hb_client/package.json                      |   1 +
 hb_client/src/layout/components/Navbar.vue  |   5 +
 hb_client/src/router/index.js               |  21 ++
 hb_client/src/views/login/index.vue         | 322 ++++++++++----------
 hb_client/src/views/testModel/faceLogin.vue | 184 +++++++++++
 hb_client/src/views/testModel/markImage.vue | 259 ++++++++++++++++
 6 files changed, 631 insertions(+), 161 deletions(-)
 create mode 100644 hb_client/src/views/testModel/faceLogin.vue
 create mode 100644 hb_client/src/views/testModel/markImage.vue

diff --git a/hb_client/package.json b/hb_client/package.json
index 1c2f90c..7564ac1 100644
--- a/hb_client/package.json
+++ b/hb_client/package.json
@@ -25,6 +25,7 @@
     "nprogress": "0.2.0",
     "path-to-regexp": "^6.2.0",
     "vue": "^2.6.14",
+    "vue-json-editor": "^1.4.3",
     "vue-router": "^3.5.2",
     "vuex": "^3.6.2",
     "xlsx": "^0.17.1"
diff --git a/hb_client/src/layout/components/Navbar.vue b/hb_client/src/layout/components/Navbar.vue
index d053e87..9d8cc17 100644
--- a/hb_client/src/layout/components/Navbar.vue
+++ b/hb_client/src/layout/components/Navbar.vue
@@ -45,6 +45,11 @@ import Breadcrumb from '@/components/Breadcrumb'
 import Hamburger from '@/components/Hamburger'
 
 export default {
+  data(){
+    return{
+      name:''
+    }
+  },
   components: {
     Breadcrumb,
     Hamburger
diff --git a/hb_client/src/router/index.js b/hb_client/src/router/index.js
index 924dfbc..795fef8 100644
--- a/hb_client/src/router/index.js
+++ b/hb_client/src/router/index.js
@@ -307,6 +307,27 @@ export const asyncRoutes = [
       }
     ]
   },
+  {
+    path: '/testModel',
+    component: Layout,
+    redirect: '/testModel/faceLogin/',
+    name: 'testModel',
+    meta: { title: '测试模块', icon: 'example' },
+    children: [
+      {
+        path: 'faceLogin',
+        name: 'faceLogin',
+        component: () => import('@/views/testModel/faceLogin'),
+        meta: { title: '人脸识别登录', icon: 'example' }
+      },
+      {
+        path: 'markImage',
+        name: 'markImage',
+        component: () => import('@/views/testModel/markImage'),
+        meta: { title: '图片标记', icon: 'example' }
+      }
+    ]
+  },
   // 404 page must be placed at the end !!!
   { path: '*', redirect: '/404', hidden: true }
 ]
diff --git a/hb_client/src/views/login/index.vue b/hb_client/src/views/login/index.vue
index 89377a9..9e606b4 100644
--- a/hb_client/src/views/login/index.vue
+++ b/hb_client/src/views/login/index.vue
@@ -4,7 +4,7 @@
 
       <h3 class="title">航玻生产管理系统</h3>
       <el-tabs v-model="activeName" :stretch="true">
-      
+
         <el-tab-pane label="账号密码登录">
           <el-form
             ref="loginForm"
@@ -20,10 +20,10 @@
                 type="text"
                 tabindex="1"
                 auto-complete="on"
-                ><svg-icon
-                  slot="prefix"
-                  icon-class="user"
-                  class="el-input__icon input-icon"
+              ><svg-icon
+                slot="prefix"
+                icon-class="user"
+                class="el-input__icon input-icon"
               /></el-input>
             </el-form-item>
 
@@ -38,10 +38,10 @@
                 tabindex="2"
                 auto-complete="on"
                 @keyup.enter.native="handleLogin"
-                ><svg-icon
-                  slot="prefix"
-                  icon-class="password"
-                  class="el-input__icon input-icon"
+              ><svg-icon
+                slot="prefix"
+                icon-class="password"
+                class="el-input__icon input-icon"
               /></el-input>
               <span class="show-pwd" @click="showPwd">
                 <svg-icon
@@ -54,7 +54,7 @@
               type="primary"
               style="width: 100%; margin-bottom: 30px"
               @click.native.prevent="handleLogin"
-              >登录</el-button
+            >登录</el-button
             >
           </el-form>
         </el-tab-pane>
@@ -65,168 +65,168 @@
 
 <script>
 
-export default {
-  name: "Login",
-  data() {
-    // const validateUsername = (rule, value, callback) => {
-    //   if (!validUsername(value)) {
-    //     callback(new Error('请输入正确账号!'))
-    //   } else {
-    //     callback()
-    //   }
-    // }
-    const validatePassword = (rule, value, callback) => {
-      if (value.length < 4) {
-        callback(new Error("密码长度小于4位!"));
-      } else {
-        callback();
-      }
-    };
-    return {
-      timer: null,
-      buttonmsg: "发送验证码",
-      count: 60,
-      loginForm: {
-        username: "",
-        password: "",
-      },
-      loginRules: {
-        username: [{ required: true, trigger: "blur", message: "请输入账户" }],
-        password: [
-          {
-            required: true,
-            trigger: "blur",
-            validator: validatePassword,
-            message: "请输入密码",
-          },
-        ],
-      },
-    
-      
-      loading: false,
-      passwordType: "password",
-      redirect: undefined,
-    };
-  },
-  created() {
-    this.getUP();
-  },
-  watch: {
-    $route: {
-      handler: function (route) {
-        this.redirect = route.query && route.query.redirect;
-      },
-      immediate: true,
-    },
-  },
-  methods: {
-    showPwd() {
-      if (this.passwordType === "password") {
-        this.passwordType = "";
-      } else {
-        this.passwordType = "password";
-      }
-      this.$nextTick(() => {
-        this.$refs.password.focus();
-      });
-    },
-   
-    handleLogin() {
-      this.$refs.loginForm.validate((valid) => {
-        if (valid) {
-          this.loading = true;
-          this.$store
-            .dispatch("user/login", this.loginForm)
-            .then(() => {
-              this.$router.push({ path: this.redirect || "/" });
-              this.loading = false;
-              localStorage.setItem("rem_username", this.loginForm.username);
-              localStorage.setItem("rem_password", this.loginForm.password);
-            })
-            .catch(() => {
-              this.loading = false;
-            });
+  export default {
+    name: "Login",
+    data() {
+      // const validateUsername = (rule, value, callback) => {
+      //   if (!validUsername(value)) {
+      //     callback(new Error('请输入正确账号!'))
+      //   } else {
+      //     callback()
+      //   }
+      // }
+      const validatePassword = (rule, value, callback) => {
+        if (value.length < 4) {
+          callback(new Error("密码长度小于4位!"));
         } else {
-          console.log("error submit!!");
-          return false;
+          callback();
         }
-      });
+      };
+      return {
+        timer: null,
+        buttonmsg: "发送验证码",
+        count: 60,
+        loginForm: {
+          username: "",
+          password: "",
+        },
+        loginRules: {
+          username: [{ required: true, trigger: "blur", message: "请输入账户" }],
+          password: [
+            {
+              required: true,
+              trigger: "blur",
+              validator: validatePassword,
+              message: "请输入密码",
+            },
+          ],
+        },
+
+
+        loading: false,
+        passwordType: "password",
+        redirect: undefined,
+      };
     },
-   
-    //读取cookie
-    getUP() {
-     
-      this.loginForm.username = localStorage.getItem("rem_username");
-      this.loginForm.password = localStorage.getItem("rem_password");
+    created() {
+      this.getUP();
     },
-  },
-};
+    watch: {
+      $route: {
+        handler: function (route) {
+          this.redirect = route.query && route.query.redirect;
+        },
+        immediate: true,
+      },
+    },
+    methods: {
+      showPwd() {
+        if (this.passwordType === "password") {
+          this.passwordType = "";
+        } else {
+          this.passwordType = "password";
+        }
+        this.$nextTick(() => {
+          this.$refs.password.focus();
+        });
+      },
+
+      handleLogin() {
+        this.$refs.loginForm.validate((valid) => {
+          if (valid) {
+            this.loading = true;
+            this.$store
+              .dispatch("user/login", this.loginForm)
+              .then(() => {
+                this.$router.push({ path: this.redirect || "/" });
+                this.loading = false;
+                localStorage.setItem("rem_username", this.loginForm.username);
+                localStorage.setItem("rem_password", this.loginForm.password);
+              })
+              .catch(() => {
+                this.loading = false;
+              });
+          } else {
+            console.log("error submit!!");
+            return false;
+          }
+        });
+      },
+
+      //读取cookie
+      getUP() {
+
+        this.loginForm.username = localStorage.getItem("rem_username");
+        this.loginForm.password = localStorage.getItem("rem_password");
+      },
+    },
+  };
 </script>
 
 <style lang="scss">
-.login {
-  display: flex;
-  justify-content: center;
-  align-items: center;
-  height: 100%;
-  background-image: url("../../assets/beijing.jpg");
-  background-size: cover;
-}
-.title {
-  margin: 30px auto 30px auto;
-  text-align: center;
-  color: #0174d7;
-}
-.logo {
-  width: 350px;
-  height: 140px;
-}
+  .login {
+    display: flex;
+    justify-content: center;
+    align-items: center;
+    height: 100%;
+    background-image: url("../../assets/beijing.jpg");
+    background-size: cover;
+  }
+  .title {
+    margin: 30px auto 30px auto;
+    text-align: center;
+    color: #0174d7;
+  }
+  .logo {
+    width: 350px;
+    height: 140px;
+  }
 
-.login-form {
-  border-radius: 6px;
-  background: #ffffff;
-  width: 400px;
-  padding: 25px 25px 5px 25px;
-  .el-input {
-    height: 45px;
-    input {
+  .login-form {
+    border-radius: 6px;
+    background: #ffffff;
+    width: 400px;
+    padding: 25px 25px 5px 25px;
+    .el-input {
       height: 45px;
+      input {
+        height: 45px;
+      }
+    }
+    .input-icon {
+      height: 39px;
+      width: 14px;
+      margin-left: 2px;
     }
   }
-  .input-icon {
-    height: 39px;
-    width: 14px;
-    margin-left: 2px;
-  }
-}
 
-.show-pwd {
-  height: 39px;
-  margin-right: 2px;
-}
-.login-tip {
-  font-size: 13px;
-  text-align: center;
-  color: #bfbfbf;
-}
-.login-code {
-  width: 33%;
-  height: 38px;
-  float: right;
-  img {
-    cursor: pointer;
-    vertical-align: middle;
+  .show-pwd {
+    height: 39px;
+    margin-right: 2px;
+  }
+  .login-tip {
+    font-size: 13px;
+    text-align: center;
+    color: #bfbfbf;
+  }
+  .login-code {
+    width: 33%;
+    height: 38px;
+    float: right;
+    img {
+      cursor: pointer;
+      vertical-align: middle;
+    }
+  }
+  .show-pwd {
+    position: absolute;
+    right: 10px;
+    top: 7px;
+    font-size: 16px;
+    cursor: pointer;
+    user-select: none;
+  }
+  .login-code-img {
+    height: 38px;
   }
-}
-.show-pwd {
-  position: absolute;
-  right: 10px;
-  top: 7px;
-  font-size: 16px;
-  cursor: pointer;
-  user-select: none;
-}
-.login-code-img {
-  height: 38px;
-}
 </style>
diff --git a/hb_client/src/views/testModel/faceLogin.vue b/hb_client/src/views/testModel/faceLogin.vue
new file mode 100644
index 0000000..3e973e6
--- /dev/null
+++ b/hb_client/src/views/testModel/faceLogin.vue
@@ -0,0 +1,184 @@
+<template>
+  <div style="width: 100%;height: 100%;">
+    <div class="testTracking">
+      <canvas style="display:none;" id="myCanvas" ref="canvas" :width="videoWidth" :height="videoHeight"></canvas>
+      <!--图片展示-->
+      <video ref="video" id="myVideo" :width="videoWidth" :height="videoHeight" autoplay style="display: block;margin:0 auto;border: 2px solid #333333;"></video>
+      <!--确认-->
+      <Button  type="primary" @click="setImage">拍照</Button>
+      <div id="res"></div>
+    </div>
+  </div>
+</template>
+
+<script>
+  import "tracking/build/data/face-min.js";
+  import "tracking/build/data/mouth-min.js";
+  import "tracking/build/data/tracking-min.js";
+  import "tracking/examples/assets/stats.min.js";
+  import "tracking/examples/assets/stats.min.js";
+  export default {
+    props:['src'],
+    data () {
+      return {
+        videoWidth: 900,
+        videoHeight: 700,
+        videoArr:[],//所有的摄像头
+        modelSel:'',//
+        myInterval: null,
+        imgSrc: '',
+        isHasFace:false,//默认没有人脸
+        tracker:null,
+      }
+    },
+    created(){
+    },
+    mounted(){
+      // this.openUserMedia();
+      this.callCamera();
+      this.changePhoto();
+      // this.checkFace();
+      if(this.src!='user'){
+        // this.myInterval = setInterval(()=>{
+        //   this.setImage();
+        // },2000)
+      }
+    },
+    methods: {
+      // 调用摄像头
+      callCamera () {
+        // H5调用电脑摄像头API
+        navigator.mediaDevices.getUserMedia({
+          video: true
+        }).then(success => {
+          // 摄像头开启成功
+          this.$refs['video'].srcObject = success;
+          // 实时拍照效果
+          this.$refs['video'].play()
+        }).catch(error => {
+          alert('摄像头开启失败，请检查摄像头是否可用！')
+        })
+      },
+      // 拍照
+      setImage () {
+        let canvas = document.getElementById("myCanvas");
+        let context = canvas.getContext('2d');
+        var video = document.getElementById("myVideo");
+        context.drawImage(video,0,0,this.videoWidth,this.videoHeight);
+        var image = new Image();
+        image = canvas.toDataURL('image/png');
+        document.getElementById('res').innerHTML = '<img style="border: 1px solid #666666;" src="'+image+'">';
+      },
+      // 关闭摄像头
+      closeCamera () {
+        if (!this.$refs['video'].srcObject) return;
+        let stream = this.$refs['video'].srcObject;
+        let tracks = stream.getTracks();
+        tracks.forEach(track => {
+          track.stop()
+        });
+        this.$refs['video'].srcObject = null
+      },
+
+
+      //切换本地摄像头
+      changePhoto(){
+        /**得到所有的设备*/
+        navigator.mediaDevices.enumerateDevices()
+          .then((devices)=> {
+            this.videoArr = [];
+            devices.forEach((item)=> {
+              if(item.kind == 'videoinput'){
+                this.videoArr.push({
+                  'label': item.kind,
+                  'id': item.deviceId
+                })
+              }
+            });
+          })
+          .catch(err=>{
+          });
+      },
+      /**打开摄像头*/
+      getUserMedia(constraints, success, error) {
+        if (navigator.mediaDevices.getUserMedia) {
+          //最新的标准API
+          navigator.mediaDevices.getUserMedia(constraints).then(success=>{
+            // 摄像头开启成功
+            this.$refs['video'].srcObject = success
+            // 实时拍照效果
+            this.$refs['video'].play()
+          }).catch(error);
+
+        } else if (navigator.webkitGetUserMedia) {
+          //webkit核心浏览器
+          navigator.webkitGetUserMedia(constraints,success, error)
+        } else if (navigator.mozGetUserMedia) {
+          //firfox浏览器
+          navigator.mozGetUserMedia(constraints, success, error);
+        } else if (navigator.getUserMedia) {
+          //旧版API
+          navigator.getUserMedia(constraints, success, error);
+        }
+      },
+
+
+      /**
+       * 检查取景框是否有人脸
+       * */
+      checkFace() {
+        // var video = document.getElementById("video");
+        let canvas = document.getElementById("myCanvas");
+        let context = canvas.getContext('2d');
+        this.tracker = new tracking.ObjectTracker("face");
+        this.tracker.setInitialScale(4);
+        this.tracker.setStepSize(2);
+        this.tracker.setEdgesDensity(0.1);
+        this.trackerTask = tracking.track("#video",  this.tracker, { camera: true });
+        let self = this;
+        this.tracker.on("track", event=> {
+          if (event.data.length <= 0) {
+            self.setFace(false);
+            return;
+          }
+          self.setFace(true);
+          context.clearRect(0, 0, canvas.width, canvas.height);
+          event.data.forEach(function (rect) {
+            context.strokeStyle = '#a64ceb';
+            context.strokeRect(rect.x, rect.y, rect.width, rect.height);
+            context.font = '11px Helvetica';
+            context.fillStyle = "#fff";
+            context.fillText('x: ' + rect.x + 'px', rect.x + rect.width + 5, rect.y + 11);
+            context.fillText('y: ' + rect.y + 'px', rect.x + rect.width + 5, rect.y + 22);
+          });
+        });
+      },
+      setFace(data){
+        this.isHasFace = data;
+      }
+
+
+
+    },
+
+    beforeDestroy () {
+      clearInterval(this.myInterval);
+      // 停止侦测
+      // this.trackerTask.stop();
+    }
+
+  }
+</script>
+
+<style scoped>
+
+ .testTracking {
+   min-height: 700px;
+   width: 100%;
+   position: relative;
+ }
+ .buttonDiv {
+   bottom: 10px;
+ }
+</style>
+
diff --git a/hb_client/src/views/testModel/markImage.vue b/hb_client/src/views/testModel/markImage.vue
new file mode 100644
index 0000000..4bbc7ec
--- /dev/null
+++ b/hb_client/src/views/testModel/markImage.vue
@@ -0,0 +1,259 @@
+<template>
+  <div>
+    <button type="button" class="btn btn-warning" @click="error1">错误</button>
+    <button @click="word1()">文字</button>
+    <button @click="restuya()">清除批注</button>
+    <button @click="back()">回退</button>
+    <button @click="saveTu()">保存</button>
+    <hr>
+<!--<img src="./../../assets/404_images/404.png">-->
+    <div style="position: relative;">
+      <canvas id="canvas" width="700"  height="500" >
+        您的浏览器不支持绘图，请升级或更换浏览器！
+      </canvas>
+      <input type="text" value="" class="hide" id="txt" placeholder="请输入文字">
+      <textarea class="hide" id="word" cols="30" rows="10"  placeholder="请输入文字" autofocus></textarea>
+      <input id="inputV" type="hidden"  value="1">
+      <span>保存的图片</span>
+      <div id="res"></div>
+    </div>
+
+  </div>
+</template>
+<script>
+  let preDrawAry = [];
+  export default {
+    data() {
+      return {
+        canvas:null,
+        ctx:null,
+        myCanvas_rect:null,
+        Txt:null,
+        word:null,
+        widths:0,
+        heights:0,
+        lineW:3,
+        colorF:"#e42343",
+        imgData:'',
+      }
+    },
+    mounted(){
+      this.canvas = document.getElementById('canvas');
+      this.ctx = this.canvas.getContext('2d');
+      this.myCanvas_rect = this.canvas.getBoundingClientRect();
+      this.Txt = document.getElementById('txt');
+      this.word = document.getElementById('word');
+      this.widths = this.myCanvas_rect.width;
+      this.heights = this.myCanvas_rect.height;
+      let imgs = new Image();
+      imgs.src = "./../../assets/404_images/404.png";
+      this.ctx.drawImage(imgs,0,0,this.widths,this.heights);
+      preDrawAry = [];
+    },
+    methods: {
+      // 叉号
+       error1(){
+         let canvas1 = document.getElementById('canvas');
+         let ctx1 = canvas1.getContext('2d');
+         this.Txt.style.display="none";
+         this.word.style.display="none";
+         ctx1.closePath();
+         this.canvas.onmousedown=function () {
+           this.imgData= ctx1.getImageData(0,0,canvas1.width,canvas1.height);
+           preDrawAry.push(this.imgData);
+           ctx1.beginPath();
+           ctx1.strokeStyle = "#e42343";
+           ctx1.lineWidth = "3";
+           ctx1.lineJoin="round";
+        };
+        //鼠标按下的位置
+         this.canvas.onmouseup=function (ev) {
+          let oldX = ev.offsetX;
+          let oldY = ev.offsetY;
+           ctx1.moveTo(oldX,oldY);
+           ctx1.lineTo(ev.offsetX+10,ev.offsetY+10);
+           ctx1.moveTo(ev.offsetX+10,ev.offsetY);
+           ctx1.lineTo(ev.offsetX,ev.offsetY+10);
+           ctx1.stroke();
+        };
+         this.ctx.closePath();
+      },
+
+      // 文字先写字
+       text(){
+         let canvas2 = document.getElementById('canvas');
+         let ctx2 = canvas2.getContext('2d');
+         let Txt2 = document.getElementById('txt');
+         Txt2.style.display="block";
+         this.word.style.display="none";
+         ctx2.font="16px Microsoft Yahei";
+         canvas2.onmousedown=function (ev) {
+           this.imgData=ctx2.getImageData(0,0,canvas2.width,canvas2.height);
+           preDrawAry.push(this.imgData);
+          var v = Txt2.value;
+    //            console.log(v);
+          if (v != '') {
+            var oldX = ev.offsetX;
+            var oldY = ev.offsetY;
+            // console.log(oldX,oldY);
+            ctx2.moveTo(oldX,oldY);
+            canvas2.onmouseup=function () {
+              ctx2.fillStyle=this.colorF;
+              ctx2.fillText(v,oldX,oldY);
+              canvas2.TextAutoLine(v,canvas2,oldX,oldY,20);
+              // Txt.value = "";
+              Txt2.style.display="none";
+            }
+          }
+        }
+      },
+
+      // 文字
+       word1(){
+         let canvas3 = document.getElementById('canvas');
+         let ctx3 = canvas3.getContext('2d');
+         let Txt3 = document.getElementById('txt');
+         let word3 = document.getElementById('word');
+         Txt3.style.display="none";
+         ctx3.font="16px Microsoft Yahei";
+         canvas3.onmousedown=function () {
+           ctx3.closePath();
+        }
+         canvas3.onmouseup=function (ev) {
+          var inputV= document.getElementById('inputV').value;
+          if(inputV == 1){
+            document.getElementById('word').focus();
+    //               console.log(ev.offsetX,ev.offsetY);
+            var oldX = ev.offsetX;
+            var oldY = ev.offsetY;
+            word3.style.display="block";
+            word3.style.left=oldX+'px';
+            word3.style.top =oldY+'px';
+
+            word3.onblur=function () {
+              let v = word3.value;
+              if(v != '' && v != ' '){
+                this.imgData=ctx3.getImageData(0,0,canvas3.width,canvas3.height);
+                let img = ctx3.getImageData(0,0,canvas3.width,canvas3.height);
+                debugger;
+                preDrawAry.push(img);
+                ctx3.moveTo(oldX,oldY);
+                ctx3.fillStyle="#e42343";
+                // ctx3.fillText(v,oldX,oldY+10);
+                // this.canvasTextAutoLine(v,canvas3,oldX,oldY,20);
+
+                let lineWidth = 0;
+                let canvasWidth = canvas3.width;
+                let lastSubStrIndex= 0;
+                for(let i=0;i<v.length;i++){
+                  lineWidth+=ctx3.measureText(v[i]).width;
+                  if(lineWidth>canvasWidth-oldX){
+                    ctx3.fillText(v.substring(lastSubStrIndex,i),oldX,oldY);
+                    oldY+=20;
+                    lineWidth=0;
+                    lastSubStrIndex=i;
+                  }
+                  if(i==v.length-1){
+                    ctx3.fillText(v.substring(lastSubStrIndex,i+1),oldX,oldY);
+                  }
+                }
+                inputV ="2";
+                word3.value = "";
+              }
+            }
+          }
+        }
+      },
+
+      // 文字过长超出换行toDataURL()
+       canvasTextAutoLine(str,canvas,initX,initY,lineHeight){
+        let ctx = canvas.getContext("2d");
+        let lineWidth = 0;
+        let canvasWidth = canvas.width;
+        let lastSubStrIndex= 0;
+        for(let i=0;i<str.length;i++){
+          lineWidth+=ctx.measureText(str[i]).width;
+          if(lineWidth>canvasWidth-initX){
+            ctx.fillText(str.substring(lastSubStrIndex,i),initX,initY);
+            initY+=lineHeight;
+            lineWidth=0;
+            lastSubStrIndex=i;
+          }
+          if(i==str.length-1){
+            ctx.fillText(str.substring(lastSubStrIndex,i+1),initX,initY);
+          }
+        }
+      },
+
+      // 删除批注
+       restuya(){
+         this.word.style.display="none";
+         this.Txt.style.display="none";
+         this.ctx.clearRect(0,0,this.canvas.width,this.canvas.height);
+        window.location.reload();
+      },
+
+      // 撤销
+       back(){
+         this.word.style.display="none";
+         this.Txt.style.display="none";
+        if(preDrawAry.length>0) {
+          // console.log(this.preDrawAry)
+          var popData = preDrawAry.pop();
+          this.ctx.putImageData(popData, 0, 0);
+        }
+      },
+
+      // 回退一次
+       put(){
+         this.ctx.putImageData(this.imgData,0,0);
+      },
+
+      //保存
+       saveTu(){
+        var image = new Image();
+        image = this.canvas.toDataURL('image/png');
+        document.getElementById('res').innerHTML = '<img style="border: 1px solid #666666;" src="'+image+'">';
+      }
+    }
+  }
+</script>
+
+<style scoped>
+  canvas{
+    border:1px solid #000000;
+    cursor: crosshair;
+  }
+  .hide{
+    display: none;
+  }
+  #txt{
+    position: absolute;
+    top: 1%;
+    left: 1%;
+    width: 575px;
+    height: 30px;
+    border:1px solid #e42343;
+  }
+  #word{
+    position: absolute;
+    width: 220px;
+    height: 80px;
+    padding: 0 2px;
+    background:none;
+    color:#e42343;
+    border: 1px dashed #b9b9b9;
+  }
+  #word::-webkit-input-placeholder{
+    color:#e42343;
+  }
+  #word::-moz-placeholder{
+    color:#e42343;
+  }
+  #word::placeholder{
+    color:#e42343;
+  }
+  #res{
+    display: inline-block;
+  }
+</style>