多点触控

screenAndroid/WXdraw.js

@@ -178,7 +178,7 @@ var draw_graph = function (graphType, obj) {
     $(".leftmains").css({
       "right": "-4rem"
     })
-    var touchfor = e.originalEvent.targetTouches; //for 的手指数组
+    var touchfor = e.originalEvent.changedTouches; //for 的手指数组
     //是否横屏
     for (var i = 0; i < touchfor.length; i++) {
       var acrossWidthX = touchfor[i].pageY * (videoHeight / voheight);