自动检测数字替换非数字的正则表达式

直接给出代码了：

<！DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><HTML> <HEAD> <TITLE> New Document </TITLE> <META NAME="Generator" CONTENT="EditPlus"> <META NAME="Author" CONTENT=""> <META NAME="Keywords" CONTENT=""> <META NAME="Description" CONTENT=""> </HEAD> <BODY> <input onkeyup="check（this）"/> </BODY> <script>function check（obj）{var sreg = /^-+.*/g;var zero = /^0[1-9]+.*d*/g;var val = obj.value;var plus = "";if（sreg.test（val））{val = val.replace（/-+/g,""）;plus = "-";}val = val.replace（/s+/g,""）;if（/^.+.*$/.test（val））{val = "";}val = val.replace（/[^d.]/,""）;val = val.replace（/（^d+.{1}）（d*）.*/g,"$1$2"）;val = val.replace（/（^d+.d{3}）d*/g,"$1"）;val = val.replace（/^[0]*（0{1}）（[1-9]*）（.*）/g,"$1$2$3"）;if（zero.test（val））{val = val.replace（/0（[1-9]+）（.*）$/,"$1$2"）;}obj.value = plus+val;} </script></HTML>

脚本之家写的一个替换非数字与中英文逗号的函数，需要的朋友可以参考一下

function renumdou（str）{var regexp = /[^d，,]]*/g;newstr=str.replace（regexp,""）;return newstr}