string拼接时去掉最后一个逗号

比如:String []str=[1,2,3,]; //注意1后面是逗号 问题:如何去掉最后一个逗号 for (int i = 0; i < applyIds.length; i++) { if(i==applyIds.length-1){ if("".equals(applyIds[i])){ res=true; } }else{ res=this.deleteApply(applyIds[i]); } } return res: 注意:此出的使用场景是:循环applyIds

String a = "struts-default.xml,struts-plugin.xml,struts.xml"; String[] bStrings = a.split(","); //以','号来分割字符串 System.out.println(bStrings[0]); int blength = bStrings.length; System.out.println(blength); for(int i=0;i<bStrings.length

我们在开发中,经常会遇到拼接字符串的时候,但是拼接后字符串会多出一个无用的字符,例如逗号(,),而在js中并没有像C#一样的TrimEnd()方法,所以我们只能通过截取或者正则表达式等方式去去掉最后一个字符,我这的例子是去掉最后一个逗号,其他的跟这个类似 js代码: var str="1,2,3,4,"; var reg=/,$/gi;//此处是正则 str=str.replace(reg,""); 这样我们就达到了去掉最后一个逗号的办法!

#region 删除最后结尾的一个逗号 2 /// <summary> 3 /// 删除最后结尾的一个逗号 4 /// </summary> 5 public static string DelLastComma(string str) 6 { 7 return str.Substring(0, str.LastIndexOf(",")); 8 } 9 #endregion

方法一:拼接过程中自动处理逗号     public static void main(String[] args) { StringBuilder str=new StringBuilder(); List<String> list=new ArrayList<String>(); list.add("你"); list.add("好"); for(int i=0;i<list.size();i++) { if(i==list.siz

//每三个数字加一个逗号 : 123,234,324 + (NSString *)countNumAndChangeformat:(NSString *)num { int count = 0; long long int a = num.longLongValue; while (a != 0) { count++; a /= 10; } NSMutableString *string = [NSMutableString stringWithString:num]; NSMutableStr

Traceback (most recent call last):  File "manage.py", line 90, in <module>    startup = importlib.import_module(edx_args.startup)  File "/usr/lib/python2.7/importlib/__init__.py", line 37, in import_module    __import__(name)  Fi

A. Minimum Difficulty time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output Mike is trying rock climbing but he is awful at it. There are n holds on the wall, i-th hold is at height ai off the g

impala 四舍五入后转换成string后又变成一个double的数值解决(除不尽的情况)例如Query: select cast(round(2 / 3, 4)*100 as string)+---------------------------------------+| cast(round(2 / 3, 4) * 100 as string) |+---------------------------------------+| 66.670000000000002 |+-------