微信浏览器禁止页面下拉查看网址实例详解

$(‘body').on(‘touchmove', function (event) {event.preventDefault();});
or
document.addEventListener('touchmove', function(e){e.preventDefault()}, false);

var overscroll = function(el) {
 el.addEventListener('touchstart', function() {
  var top = el.scrollTop
   , totalScroll = el.scrollHeight
   , currentScroll = top + el.offsetHeight;
  //If we're at the top or the bottom of the containers
  //scroll, push up or down one pixel.
  //
  //this prevents the scroll from "passing through" to
  //the body.
  if(top === 0) {
   el.scrollTop = 1;
  } else if(currentScroll === totalScroll) {
   el.scrollTop = top - 1;
  }
 });
 el.addEventListener('touchmove', function(evt) {
  //if the content is actually scrollable, i.e. the content is long enough
  //that scrolling can occur
  if(el.offsetHeight < el.scrollHeight)
   evt._isScroller = true;
 });
}
overscroll(document.querySelector('.scroll'));
document.body.addEventListener('touchmove', function(evt) {
 //In this case, the default behavior is scrolling the body, which
 //would result in an overflow. Since we don't want that, we preventDefault.
 if(!evt._isScroller) {
  evt.preventDefault();
 }
});