Question

asp.net如何去掉一个字符串中指定字符?

比如string str = "abcdefg";
我想去掉"eft"
使str为"abcd"
该怎么做?

Answer 1

string substr="efg";
string str="abcdefg";
str=str.Replace(substr,"");

Answer 2

str=str.Replace("eft","");

Answer 3

string str="abcdefg";
clear(str,4,3);

Answer 4

string a="abcdefg";
string b=a.substring(0,4);

Answer 5

str=str.Replace("eft","");