[C#] 字串前加@的意思和用法 - verbatim literal

string a = "hello, world";                  // hello, world
string b = @"hello, world";               // hello, world
string c = "hello \t world";               // hello     world
string d = @"hello \t world";               // hello \t world
string e = "Joe said \"Hello\" to me";      // Joe said "Hello" to me
string f = @"Joe said ""Hello"" to me";   // Joe said "Hello" to me
string g = "\\\\server\\share\\file.txt";   // \\server\share\file.txt
string h = @"\\server\share\file.txt";      // \\server\share\file.txt
string i = "one\r\ntwo\r\nthree";
string j = @"one
two
three";

上面是msdn給的例子,說明了加不加@的差別,

基本上加上@就是告訴編譯器,接下來的這個字串我會全權負責,請編譯器不要自做聰明,只要如實照做就好了

如果你不加@,只要有反斜線,編譯器會以跳脫字元去解讀,比如像\t,就是按一次tab鍵的意思.

而使用@要注意的是上例的string f,我如果要顯示"時,要用""來取代.