超级菜鸟问题

[lipc]

刚学VC＋＋
#include "STRING.H"
int main(int argc, char* argv[])
{
string s="Hello World!";

printf(s);
return 0;
}
出现错误
--------------------Configuration: Myapp - Win32 Debug--------------------
Compiling...
Myapp.cpp
D:\sssss\Myapp\Myapp.cpp(9) : error C2065: 'string' : undeclared identifier
D:\sssss\Myapp\Myapp.cpp(9) : error C2146: syntax error : missing ';' before identifier 's'
D:\sssss\Myapp\Myapp.cpp(9) : error C2065: 's' : undeclared identifier
D:\sssss\Myapp\Myapp.cpp(9) : error C2440: '=' : cannot convert from 'char [13]' to 'int'
This conversion requires a reinterpret_cast, a C-style cast or function-style cast
Error executing cl.exe.

Myapp.exe - 4 error(s), 0 warning(s)

请各位大侠指教！谢谢

[sunny2zhang]

大小写，

[晨星]

printf(s.c_str());
pritnf是C的标准库函数，第一个参数只能是字符指针，不可以是某个C++对象，除非那个对象拥有重载了的字符指针转换符。

[fvan]

printf(s.GetBuffer(MAX_PATH));
这样获取他的字符指针

[handsomepine]

#include "string"
int main(int argc, char* argv[])
{
std::string s="Hello World!";

printf(s.c_str());
return 0;
}

[lulu1979714]

#include "stdafx.h"
#include <iostream>
using namespace std;
int main(int argc, char* argv[])
{
string s="Hello World!";

printf(s.c_str());
return 0;
}
在VC＋＋中试过的可以用了

[oyljerry]

c_str()转换一下