CSS禁止文字选择user-select应用

body{
-moz-user-select: none; /火狐/
-webkit-user-select: none; /webkit浏览器/
-ms-user-select: none; /IE10/
-khtml-user-select: none; /早期浏览器/
user-select: none;
}

//IE6-9
document.body.onselectstart = document.body.ondrag = function(){
return false;
}