有没有一种简单的方法可以在C＃中更改字符串中的char？ [英] Is there an easy way to change a char in a string in C#?

问题描述

我想这样做：

string s = "abc";
s[1] = 'x';

和s将成为 axc。但是，string [i]似乎只有一个吸气剂而没有二传手。编译器给我以下错误：

and s will become "axc". However, it seems that string[i] only has a getter and has no setter. The compiler gives me the following error:

属性或索引器
'string.this [int]'无法分配
到-这是只读的

"Property or indexer 'string.this[int]' cannot be assigned to -- it is read only"

我想我可以做一个循环并更改想要的字符。但我只是想知道是否有一种简单的方法？以及为什么没有针对字符串[i]的设置器？

I guess I could make a loop and change the char i want. but i was just wondering if there is an easy way to do it? And why there isn't a setter for string[i]?

预先感谢。

推荐答案

字符串是不可变的，因此您必须制作一个 char [] 数组，对其进行更改，然后将其返回为字符串：

Strings are immutable, so you have to make a char[] array, change it, then make it back into a string:

string s = "foo";
char[] arr = s.ToCharArray();
arr[1] = 'x';
s = new string(arr);

这篇关于有没有一种简单的方法可以在C＃中更改字符串中的char？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！