(编辑:jimmy 日期: 2024/10/14 浏览:2)
Code:用JavaScript限制textarea输入长度 (For: IE、Firefox ...) maxlength=10 <"20" onkeyup="return isMaxLen(this)"><"text/javascript"> function isMaxLen(o){ var nMaxLen=o.getAttribute? parseInt(o.getAttribute("maxlength")):""; if(o.getAttribute && o.value.length>nMaxLen){ o.value=o.value.substring(0,nMaxLen) } } [Ctrl+A 全选 注:引入外部Js需再刷新一下页面才能执行]