添加千分号

以下方法在网上找到资料后修改过。

obj 对象就是个 字符串对象。

//添加千分号
 
function AddQF(obj){
    if(AllTrim(obj) != ""){
        if(isDouble(AllTrim(obj))){
            var str2= "";
            if(AllTrim(obj).indexOf(".")!=-1){       
                var str = AllTrim(obj).split(".")[0];
                if(str.indexOf("-")!=-1){
                    str = str.substring(1,str.length);
                 }  
               
                //添加千分号       
                var i = str.length/3;
                var k = str.length%3;
                if( k== 0){
                    for(var j=0;j<i;j++){           
                        str2+=str.substring(j*3,3*j+3)+",";       
                    }
                }else{
                    var l = int(i);
                    str2+=str.substring(0,k)+",";
                    for(var j=0;j<l;j++){           
                        str2+=str.substring(j*3+k,3*j+3+k)+",";       
                    }
                         
                }
                //去除最后一个千分号       
                str2=str2.substring(0,str2.length-1);
                str2+="."+AllTrim(obj).split(".")[1];
             }else{
               var str = AllTrim(obj);      
                 if(str.indexOf("-")!=-1){
                    str = str.substring(1,str.length);
                 }
                //添加千分号       
                var i = str.length/3;
                var k = str.length%3;
                if( k== 0){
                    for(var j=0;j<i;j++){           
                        str2+=str.substring(j*3,3*j+3)+",";       
                    }
                }else{
                    var l = int(i);
                    str2+=str.substring(0,k)+",";
                    for(var j=0;j<l;j++){           
                        str2+=str.substring(j*3+k,3*j+3+k)+",";       
                    }
                         
                }
                //去除最后一个千分号       
                str2=str2.substring(0,str2.length-1);
             }
             if(AllTrim(obj).indexOf("-")!=-1){
                obj = "-"+str2;
             }else{
                obj = str2;
             }
            
         }        
     }else{
           }
    return obj;
   
}

//去处千分号
function DelQF(obj){
    obj = ReplaceAll(obj,",","") ;
     setCaret(obj,obj.length);
    
}

//显示全部文本
function ShowText(obj){
    obj.title=obj;
}

//转换为整数
function int(num){return num-num%1}

 

//替换字符串
function ReplaceAll(str, sptr, sptr1)
{
    while (str.indexOf(sptr) >= 0)
    {
       str = str.replace(sptr, sptr1);
    }
    return str;
}

//是否为数字(含小数和负数)
function isDouble(s)
{
var patrn=/^-?[1-9]+\d*$|^(-?[1-9]+\d*)(\.\d+)$|^(-?[0])(\.\d+)$|^[0]$/;
if (!patrn.exec(s)) return false
return true
}

//是否为正整数
function isInt(s)
{
var patrn=/^\d*$/;
if (!patrn.exec(s)) return false
return true
}

//去所有空格  
String.prototype.trimAll = function(){  
    return this.replace(/(^\s*)|(\s*)|(\s*$)/g, "");  
};

function AllTrim(obj){  
    return obj.trimAll();
}

//去两边空格  
String.prototype.trim = function(){  
    return this.replace(/(^\s*)|(\s*$)/g, "");  
};
function PeripheralTrim(obj){  
    return obj.trim();
}  
     

//光标移到text 中指定位置(选中文本)
function setCaret(obj,pos)
{    
    var r = obj.createTextRange();
    //r.collapse(true);
   // r.moveStart('character',pos);
    r.select();
}

//获取系统时间
function showtime () {
var now = new Date();
var year = now.getYear();
var month = now.getMonth() + 1;
var date = now.getDate();
var hours = now.getHours();
var minutes = now.getMinutes();
var seconds = now.getSeconds();
var day = now.getDay();
Day = new MakeArray(7);
Day[0]="星期天";
Day[1]="星期一";
Day[2]="星期二";
Day[3]="星期三";
Day[4]="星期四";
Day[5]="星期五";
Day[6]="星期六";
var timeValue = "";
timeValue += "<span style='font-size:20px;'><b>";
timeValue += ((hours < 10) ? "0"+hours: hours);
timeValue += ((minutes < 10) ? ":0" : ":") + minutes;
timeValue += ((seconds < 10) ? ":0" : ":") + seconds;
timeValue += (hours < 12) ? "<span style='font-size:12px;'>上午</span>" : "<span style='font-size:12px;'>下午</span>";
timeValue += "</span> "+(Day[day]) + " ";
timeValue += year + "年";
timeValue += ((month < 10) ? "0" : "") + month + "月";
timeValue += date + "日 ";

document.getElementById("time").innerHTML = timeValue+"</b>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<br/><br/>";
timerID = setTimeout("showtime()",1000);
timerRunning = true
}