diff --git a/前端/前端通过页面(dom)生成图片并下载保存.md b/前端/前端通过页面(dom)生成图片并下载保存.md
index 1799360..c05ad0f 100644
--- a/前端/前端通过页面(dom)生成图片并下载保存.md
+++ b/前端/前端通过页面(dom)生成图片并下载保存.md
@@ -13,41 +13,41 @@
 ## 使用
 页面现在默认已经写好了,通过页面进行生成了
 ```
- $(".download").click(() => {
-            new html2canvas(document.getElementById('app'), {
-                allowTaint: true,
-                taintTest: true,
-                useCORS: true,
-                background: null,
-                windowWidth:document.body.scrollWidth,
-                windowHeight:document.body.scrollHeight,
-                x:(document.body.scrollWidth - width)/2,
-                y:0
-            }).then(canvas => {
-                // canvas为转换后的Canvas对象
-                // imgBlob = canvas.toDataURL('image/jpeg', 1.0);
-                // imgBlob = imgBlob.toString().substring(imgBlob.indexOf(",") + 1);
-                // window.saveAs(imgBlob, 'my-node.png'); 
-                let imgUrl = Canvas2Image.convertToPNG(canvas,$("#app").width(),$("#app").height())
-                console.log($(imgUrl).attr('src'))
-                imgUrl = $(imgUrl).attr('src')
-            // 如果浏览器支持msSaveOrOpenBlob方法（也就是使用IE浏览器的时候），那么调用该方法去下载图片
-            if (window.navigator.msSaveOrOpenBlob) {
-                var bstr = atob(imgUrl.split(',')[1])
-                var n = bstr.length
-                var u8arr = new Uint8Array(n)
-                while (n--) {
-                u8arr[n] = bstr.charCodeAt(n)
-                }
-                var blob = new Blob([u8arr])
-                window.navigator.msSaveOrOpenBlob(blob, new Date().getTime() + '.' + 'png')
-            } else {
-                // 这里就按照chrome等新版浏览器来处理
-                const a = document.createElement('a')
-                a.href = imgUrl
-                a.setAttribute('download', new Date().getTime() + '.png')
-                a.click()
-            }
-            });
-        })
+$(".download").click(() => {
+    new html2canvas(document.getElementById('app'), {
+        allowTaint: true,
+        taintTest: true,
+        useCORS: true,
+        background: null,
+        windowWidth:document.body.scrollWidth,
+        windowHeight:document.body.scrollHeight,
+        x:(document.body.scrollWidth - width)/2,
+        y:0
+    }).then(canvas => {
+        // canvas为转换后的Canvas对象
+        // imgBlob = canvas.toDataURL('image/jpeg', 1.0);
+        // imgBlob = imgBlob.toString().substring(imgBlob.indexOf(",") + 1);
+        // window.saveAs(imgBlob, 'my-node.png'); 
+        let imgUrl = Canvas2Image.convertToPNG(canvas,$("#app").width(),$("#app").height())
+        console.log($(imgUrl).attr('src'))
+        imgUrl = $(imgUrl).attr('src')
+    // 如果浏览器支持msSaveOrOpenBlob方法（也就是使用IE浏览器的时候），那么调用该方法去下载图片
+    if (window.navigator.msSaveOrOpenBlob) {
+        var bstr = atob(imgUrl.split(',')[1])
+        var n = bstr.length
+        var u8arr = new Uint8Array(n)
+        while (n--) {
+        u8arr[n] = bstr.charCodeAt(n)
+        }
+        var blob = new Blob([u8arr])
+        window.navigator.msSaveOrOpenBlob(blob, new Date().getTime() + '.' + 'png')
+    } else {
+        // 这里就按照chrome等新版浏览器来处理
+        const a = document.createElement('a')
+        a.href = imgUrl
+        a.setAttribute('download', new Date().getTime() + '.png')
+        a.click()
+    }
+    });
+})
 ```
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