http://jonsion.iteye.com/blog/558277
jquery 限制文本框只能输入数字 $("input[name='fangwenyudinhuishu']").keyup(function(){ var tmptxt=$(this).val(); $(this).val(tmptxt.replace(/\D|^0/g,'')); }).bind("paste",function(){ var tmptxt=$(this).val(); $(this).val(tmptxt.replace(/\D|^0/g,'')); }).css("ime-mode", "disabled"); 上面是keyup事件处理,下面处理了CTR+V事件,最后就是CSS设置输入法不可用 用jquery限制文本框只能输入数字: 程序: $(function(){ //文本框只能输入数字,并屏蔽输入法和粘贴 $.fn.numeral = function() { $(this).css("ime-mode", "disabled"); this.bind("keypress",function(e) { var code = (e.keyCode ? e.keyCode : e.which); //兼容火狐 IE if(!$.browser.msie&&(e.keyCode==0x8)) //火狐下不能使用退格键 { return ; } return code >= 48 && code<= 57; }); this.bind("blur", function() { if (this.value.lastIndexOf(".") == (this.value.length - 1)) { this.value = this.value.substr(0, this.value.length - 1); } else if (isNaN(this.value)) { this.value = ""; } }); this.bind("paste", function() { var s = clipboardData.getData('text'); if (!/\D/.test(s)); value = s.replace(/^0*/, ''); return false; }); this.bind("dragenter", function() { return false; }); this.bind("keyup", function() { if (/(^0+)/.test(this.value)) { this.value = this.value.replace(/^0*/, ''); } }); }; //调用文本框的id $("#score").numeral(); });