如题

h5 meta里加了这串不行,还是可以缩放

<meta name="viewport" content="width=device-width,initial-scale=1,maximum-scale=1.0,,minimum-scale=1.0,user-scalable=0">js

js也加了 网上的这些阻止方法 也不行

// 阻止双击放大
         var lastTouchEnd = 0;
         document.addEventListener('touchstart', function(event) {
                //  console.log(event.touches.length);
         if (event.touches.length > 1) {
             event.preventDefault();
         }
         }, false);
         document.addEventListener('touchend', function(event) {
         var now = (new Date()).getTime();
         if (now - lastTouchEnd <= 300) {
             event.preventDefault();
         }
         lastTouchEnd = now;
         }, false);


         // 阻止双指放大
         document.addEventListener('gesturestart', function(event) {
                 console.log(event.scale);
                 if(event.scale>0){
                         event.preventDefault();
                 }
         }, false);
         document.addEventListener('gesturestart', function(event) {
                var event=event || window.event
               if (typeof event.preventDefault != 'undefined') {//w3c
                        event.preventDefault();
                   } else{
                        event.returnValue = false;//ie
                   }
          });