var winHeight = $(window).height(); 
var u = navigator.userAgent, app = navigator.appVersion
var isIOS = !!u.match(/\(i[^;]+;( U;)? CPU.+Mac OS X/); //ios终端
var adOrIosTime = 0;
$("input").blur(function(){
   clearTimeout(adOrIosTime);
   if (isIOS) {
     adOrIosTime = setTimeout(()=>{
     if(document.activeElement.tagName == ‘INPUT‘ || document.activeElement.tagName == ‘TEXTAREA‘){
       return;
     }
     let result = ‘pc‘;
     if(/(iPhone|iPad|iPod|iOS)/i.test(navigator.userAgent)) { //判断iPhone|iPad|iPod|iOS
       result = ‘ios‘;
     }else if(/(Android)/i.test(navigator.userAgent)) {  //判断Android
       result = ‘android‘
     }
     if( result = ‘ios‘ ){
       document.activeElement.scrollIntoViewIfNeeded(true);
     }
     },100)
   }else{
     adOrIosTime = setTimeout(()=>{
       window.scrollTo(0, Math.max(winHeight - 1, 0));
     }, 100);
   }
});
注意:************************有时会出现绑定事件不成功*****************可以这样写**************************
<input type=‘text‘ onblur="inputBlur();"/>
<script type="text/javascript">
var winHeight = $(window).height(); 
var u = navigator.userAgent, app = navigator.appVersion
var isIOS = !!u.match(/\(i[^;]+;( U;)? CPU.+Mac OS X/); //ios终端
var adOrIosTime = 0;
function inputBlur(){
  clearTimeout(adOrIosTime);
  if (isIOS) {
    adOrIosTime = setTimeout(()=>{
    if(document.activeElement.tagName == ‘INPUT‘ || document.activeElement.tagName == ‘TEXTAREA‘){
      return;
    }
    let result = ‘pc‘;
    if(/(iPhone|iPad|iPod|iOS)/i.test(navigator.userAgent)) { //判断iPhone|iPad|iPod|iOS
      result = ‘ios‘;
    }else if(/(Android)/i.test(navigator.userAgent)) {  //判断Android
      result = ‘android‘
    }
    if( result = ‘ios‘ ){
      document.activeElement.scrollIntoViewIfNeeded(true);
    }
    },100)
  }else{
    adOrIosTime = setTimeout(()=>{
      window.scrollTo(0, Math.max(winHeight - 1, 0));
    }, 100);
  }
}
</script>
