Input文本框随着输入内容多少自动延伸

function checkLength(which) {
    var oTextCount = document.getElementById("char");   
    iCount = which.value.replace(/[^/u0000-/u00ff]/g,"aa");
    oTextCount.innerHTML = ""+ iCount.length+"";
    which.style.border = '1px dotted #FF0000';
which.size=iCount.length+2;
}
 



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http://www.corange.cn/archives/2008/01/111.html

转载于:https://www.cnblogs.com/ajuanabc/archive/2008/08/22/2463640.html