反斜杠导致问题C ++ [英] Back slash causing problems c++

问题描述

我试图在C ++中以这样的字符串使用反斜杠:

I'm trying to use back slash in C++ in a string like this :

HWND hwnd = FindWindowA(NULL, "C:\Example\App.exe");

因此对于此示例，我将得到以下错误/警告:未知转义序列:'\ E'""未知转义序列:'\ A'. 由于我需要输入窗口的确切名称，是否有任何方法可以避免使用反斜杠或阻止编译器将其解释为转义序列"?

So for this example I would get these errors/warnings :"unknown escape sequence: '\E'" "unknown escape sequence: '\A'" . Since I need to type in the exact name of the window , is there any way to avoid using back slashes or stop the compiler from interpreting them as "escape sequences" ?

推荐答案

您必须正确地逃避它们，C ++ 11添加了

You have to escape them properly, C++11 added raw string which eases this thing:

HWND hwnd = FindWindowA(NULL, R"(C:\Example\App.exe)");

其他则手动完成:

HWND hwnd = FindWindowA(NULL, "C:\\Example\\App.exe");

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