驗證正則表達式 替換

var t_tPipeId = $("#tPipeId").val();t_tPipeId = $.trim(t_tPipeId); t_tPipeId = t_tPipeId.replace(/\-/g, "_n");//特殊字符除外"-"
var t_tPipeLen = $("#tPipeLen").val();t_tPipeLen = $.trim(t_tPipeLen);
var t_tColor = $("#tColor").val();t_tColor = $.trim(t_tColor); t_tColor = t_tColor.replace("#","");//特殊字符#用%23替代


var reg = /^\d+$/;//請填寫數字

var reg2 = /^[\u4E00-\u9FA5\uf900-\ufa2d\w\.\s]+$/;//不能輸入特殊字符

if(t_tpipeSn == "" || t_tPipeId == "" || t_tPipeLen == "" || t_tPipeDia == "" || t_tPipeMat == "" || t_tLvl == "" || t_tColor == ""){
$("#msgInfo").html("不能爲空！");
return false;
}else if(!reg.test(t_tPipeLen) || !reg.test(t_tPipeDia) || !reg.test(t_tPipeMat) || !reg.test(t_tLvl)){
$("#msgInfo").html("請填寫數字！");
return false;
}else if(!reg2.test(t_tPipeId)){
$("#msgInfo").html("不能輸入特殊字符！");
return false;

}

var s = "abcdefgbb";

s = s.replace("b", "n"); //將b替換成n，只能替換一次

s = s.replace(/\b/g, "n"); // 將所有的b替換成n