function moveEnd(obj){
        obj.focus(); 
        var len = obj.value.length; 
        if (document.selection) { 
            var sel = obj.createTextRange(); 
            sel.moveStart('character',len); //設(shè)置開頭的位置
            sel.collapse(); 
            sel.select(); 
        } else if (typeof obj.selectionStart == 'number' && typeof obj.selectionEnd == 'number') { 
            obj.selectionStart = obj.selectionEnd = len; 
        } 
    } 

    moveEnd($("#user_name").get(0));
    //若定位光標(biāo)后續(xù)有操作，則在調(diào)用時(shí)套上setTimeout
    setTimeout(function() {
           moveEnd($('#bankCardNo').get(0));
    }, 0);

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