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Homephp教程php手册jQuery点击input使光标移动到最后或指定位置

jQuery点击input使光标移动到最后或指定位置

Jun 06, 2016 pm 08:13 PM
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你要知道面对一个 处女座的 需求者, focus()是远远不够的。 比如说“我点进去的时候光标要在最后,这样我就不用再把光标移动到最后去添加东西了。” oh,让我先撞下墙。 我们需要扩展jQuery: //光标放在最后 $("#文本框ID").textFocus();光标放在第二个字符

你要知道面对一个 处女座的 需求者, focus()是远远不够的。
比如说“我点进去的时候光标要在最后,这样我就不用再把光标移动到最后去添加东西了。”
oh,让我先撞下墙。
我们需要扩展jQuery:

//光标放在最后 $("#文本框ID").textFocus();光标放在第二个字符后面 $("#文本框ID").textFocus(2);
(function($){
    $.fn.textFocus=function(v){
        var range,len,v=v===undefined?0:parseInt(v);
        this.each(function(){
            if($.browser.msie){
                range=this.createTextRange();
                v===0?range.collapse(false):range.move("character",v);
                range.select();
            }else{
                len=this.value.length;
                v===0?this.setSelectionRange(len,len):this.setSelectionRange(v,v);
            }
            this.focus();
        });
        return this;
    }
})(jQuery);

另一种简单的方法:
var t=$(“#”+id).val();
$(“#”+id).val(“”).focus().val(t);

建议采用第一种方法。

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