string.Replace() 不更新字符串 [英] string.Replace() doesn't update the string

问题描述

我尝试使用 string.Replace() 函数，但效果不佳.

I tried use the string.Replace() function, but it doesn't work right.

string test = "AAA AA AA faseffs AEfAfse AFAEf AEFAEf";
test.Replace('A', 'C');
label.Text = test;

label 向我显示 test 字符串而不替换任何内容.

label shows me the test string without replacing anything.

推荐答案

字符串在 NET 中是不可变的.Replace 使用替换的字符构建一个新字符串并返回它.您可以将返回的字符串分配给用于调用 Replace 方法的同一字符串(或分配给新的字符串变量)

Strings are immutable in NET. Replace works building a new string with the replaced chars and returning it. You could assign the returned string to the same string used to call the Replace method (or to a new string variable)

test = test.Replace('A', 'C');

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