最后从字符串中删除标点符号

Question

I have a string value and punctuation string. I need to remove punctuation characters from a string value from the last till it finds the character except punctuation character. Here is a sample string of Input value and punctuation characters to remove.

Sample Input String

1. The Indian economy.My suggestion.,..,... ...

2. The Indian economy.,,[], ..My suggestion.,..,... ...[]

Punctuation characters to be removed

[,.;:]

Result String after replace

1. The Indian economy.My suggestion

2. The Indian economy.,,[], ..My suggestion

Any help to this will be appreciated.

Thanks

Answer 1

使用String.TrimEnd（） ：

string result=str.TrimEnd('.',',','[',']',' ');

Answer 2

Use following pattern to match trailing punctuation characters:

@"\W+$"

---

string str = @"1. The Indian economy.My suggestion.,..,... ...";
string replaced = Regex.Replace(str, @"\W+$", "");
Console.WriteLine(replaced); // => 1. The Indian economy.My suggestion

\\W matches non-word characters.