如何用help substring替换空字符串

Question

{adsafi**ClRf**udsaf**ClRf**adsf....EOF**ClRf** }

从上面的字符串中如何替换EOF和}

之间的string.empty

输出：

{adsafi**ClRf**udsaf**ClRf**adsf....EOF }**

Answer 1

int lastIndex = input.LastIndexOf("something");
string result = input.Substring(lastIndex);
// or
string result = input.Substring(lastIndex, length);