c# - 如何用正则表达式替换包含圆括号(圆括号)的文本？

Question

oldvalue = "RGB = (255,000,255,000)"
newvalue = "RGB = (255,255,000,000)"
File.WriteAllText("C:\\Users\\devdrone\\Desktop\\Abc.txt", 
                    Regex.Replace(File.ReadAllText("C:\\Users\\devdrone\\Desktop\\Abc.txt"), 
                                    oldvalue, 
                                    newvalue));

这不会替换为新值。

但它适用于

oldvalue = "RGB 1"
newvalue = "RGB 0"

Answer 1

由于要替换的字符串是行字符串，所以不要使用 Regex.Replace 而要使用 String.Replace:

string oldvalue = "RGB = (255,000,255,000)";
string newvalue = "RGB = (255,255,000,000)";
File.WriteAllText("C:\\Users\\devdrone\\Desktop\\Abc.txt", 
            File.ReadAllText("C:\\Users\\devdrone\\Desktop\\Abc.txt").Replace( 
                            oldvalue, 
                            newvalue));