多查查MSDN，你的问题很好解决的！以下代码来自MSDN，仔细读一读吧 ：） // If the prototype of a function is known to the compiler, // the LPCTSTR cast operator may be invoked implicitlyCString strSports(_T("Hockey is Best!")); TCHAR sz[1024];lstrcpy(sz, strSports);// If the prototype isn't known, or is a va_arg prototype, // you must invoke the cast operator explicitly. For example, // the va_arg part of a call to sprintf() needs the cast:sprintf(sz, "I think that %s!\n", (LPCTSTR) strSports);// while the format parameter is known to be an LPCTSTR and // therefore doesn't need the cast:sprintf(sz, strSports);// Note that some situations are ambiguous. This line will // put the address of the strSports object to stdout:cout << strSports;// while this line will put the content of the string out:cout << (LPCTSTR) strSports;
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// If the prototype of a function is known to the compiler,
// the LPCTSTR cast operator may be invoked implicitlyCString strSports(_T("Hockey is Best!"));
TCHAR sz[1024];lstrcpy(sz, strSports);// If the prototype isn't known, or is a va_arg prototype,
// you must invoke the cast operator explicitly. For example,
// the va_arg part of a call to sprintf() needs the cast:sprintf(sz, "I think that %s!\n", (LPCTSTR) strSports);// while the format parameter is known to be an LPCTSTR and
// therefore doesn't need the cast:sprintf(sz, strSports);// Note that some situations are ambiguous. This line will
// put the address of the strSports object to stdout:cout << strSports;// while this line will put the content of the string out:cout << (LPCTSTR) strSports;