c# - 字符串查找和替换

Question

我有一个字符串

string text="~aaa~bbb~ccc~bbbddd";

输入值将是:bbb

所以在上面的字符串中我应该删除值"~bbb"

结果字符串应该是

text="~aaa~ccc~bbbddd";

Answer 1

我不确定你想做什么，但如果我知道你可以这样做:

private string ReplaceFirstOccurrence(string Source, string Find, string Replace)
{
 int Place = Source.IndexOf(Find);
 string result = Source.Remove(Place, Find.Length).Insert(Place, Replace);
 return result;
}

var result =ReplaceFirstOccurrence(text,"~"+input,"");