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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                    }           });