导出参数设置

src/views/learning/item-list.vue

@@ -855,12 +855,20 @@ export default {
 
       let element = '';
       element = document.querySelector('.item-list-tabs .el-tabs__content');
-      console.log(element);
       if(element == null) {
         return
       }
+      let opts = {
+        scale:window.devicePixelRatio, // 添加的scale 参数
+        logging: true, //日志开关
+        width:element.offsetWidth, //dom 原始宽度
+        height:element.offsetHeight, //dom 原始高度
+        useCORS: true,
+        dpi:300
+      };
+      console.log('导出参数opts',opts);
       setTimeout(() => {
-        html2Canvas(element).then(function(canvas) {
+        html2Canvas(element,opts).then(function(canvas) {
           let contentWidth = canvas.width;
           let contentHeight = canvas.height;
 
@@ -884,7 +892,7 @@ export default {
 
           for(let i= 1;i<tabsList.length;i++) {
             let idStr = tabsList[i].$el.id;
-            console.log(idStr,vm.activeName);
+            // console.log(idStr,vm.activeName);
             if(idStr.indexOf(vm.activeName) == -1) {
               tabsList[i].$el.style.display = 'none';
             }