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动态显示可输入的字数

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PHP中文网Original
2016-05-25 17:09:38987browse


还可以输入15字数js：
function setShowLength(obj, maxlength, id)
{
    var rem = maxlength - obj.value.length;
    var wid = id;
    if (rem < 0){
        rem = 0;
    }
    document.getElementById(wid).innerHTML = "还可以输入" + rem + "字数";
}

                   

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