如何在C ++字符串中转义分号

Question

std:string str("text1\; text2\;");

How come VS2005 says ; unrecognized character escape sequence. ; unrecognized character escape sequence.

Please advise, thanks.

Answer 1

Because this is wrong:

std:string str("text1\; text2\;");

This is correct:

std::string str("text1; text2;");

TWO colons after std.

Answer 2

没有必要逃脱分号

Answer 3

只需将分号放在没有反斜杠的情况下：

std::string str("text1; text2;");

Answer 4

Semicolons have absolutely no significance in C strings; they're just normal characters there. If you need to put a backslash in the string because something later requires it, it's the backslash that needs the backslash in front.

std::string str("text1\\; text2\\;");

That's because \\; is not a recognized escape sequence in C++; the compiler rightly wants to know what on earth you're talking about when you put that in.