1.将string转换为int(或float) var s = "12"; s+1;==>输出121 parseInt(s)+ 1; ==>输出13( parseFloat(s)+ 1; ==>输出13 )2.Js根据现有值(status)控制RadioButtonList 的选中值 varrbl=document.getElementById('XXXXX');varrbls=rbl.getElementsByTagName('input');if(status ==1)rbls[0].checked=true;if(st Read More