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C#去掉字元串最後一位字元

字元串:string s = "1,2,3,4,5,"

目标:删除最後一個 ","

方法:

1、用的最多的是Substring,這個也是我一直用的

s = s.Substring(0,s.Length - 1)

2、用TrimEnd,這個東西傳遞的是一個字元數組

s=s.TrimEnd(',')

//如果要删除"5,",則需要這麼寫

char[] MyChar = {'5',','};

s = s.TrimEnd(MyChar);

//s = "1,2,3,"

3、用Remove

string a = "123";

a = a.Remove(a.Length - 1,1); //移除掉","