iphone长按a标签弹窗 禁用;给a标签设置css:
-webkit-touch-callout:none;
οndragstart='return false' onselectstart ='return false'
οnselect='document.selection.empty()' οncοpy='document.selection.empty()'
onbeforecopy='return false' οnmοuseup='document.selection.empty()'>
手机端 禁止复制
*{
-webkit-touch-callout:none;
-webkit-user-select:none;
-khtml-user-select:none;
-moz-user-select:none;
-ms-user-select:none;
user-select:none;
-o-user-select:none;
}