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。
但它与
oldvalue = "RGB 1"
newvalue = "RGB 0"
由于您要替换的字符串是行字符串,因此请勿使用,Regex.Replace
但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));
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