UC知道一个简单C++例子?
来源：百度知道 编辑：UC知道 时间：2024/06/20 18:25:15
这是程序代码:
#include <iostream.h>
#include <string.h>
#include "stdio.h"
void main()
{
string name="Niels Stroustrup";
string s=name.substr(6,10);
name.replace(0,5,"Nicholas");
printf("name:%s\n",name.c_str());
}
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|这是程序出错提示:
--------------------Configuration: A_TEST - Win32 Debug--------------------
Compiling...
temp.cpp
E:\MATE\VC\A_TEST\temp.cpp(6) : error C2065: 'string' : undeclared identifier
E:\MATE\VC\A_TEST\temp.cpp(6) : error C2146: syntax error : missing ';' before identifier 'name'
E:\MATE\VC\A_TEST\temp.cpp(6) : error C2065: 'name' : undeclared identifier
E:\MATE\VC\A_TEST\temp.cpp(6) : error C2440: '=' : cannot convert from 'char [17]' to 'int'
This conversion requires a reinterp
#include <iostream.h>
#include <string.h>
#include "stdio.h"
void main()
{
string name="Niels Stroustrup";
string s=name.substr(6,10);
name.replace(0,5,"Nicholas");
printf("name:%s\n",name.c_str());
}
|
|
|
|这是程序出错提示:
--------------------Configuration: A_TEST - Win32 Debug--------------------
Compiling...
temp.cpp
E:\MATE\VC\A_TEST\temp.cpp(6) : error C2065: 'string' : undeclared identifier
E:\MATE\VC\A_TEST\temp.cpp(6) : error C2146: syntax error : missing ';' before identifier 'name'
E:\MATE\VC\A_TEST\temp.cpp(6) : error C2065: 'name' : undeclared identifier
E:\MATE\VC\A_TEST\temp.cpp(6) : error C2440: '=' : cannot convert from 'char [17]' to 'int'
This conversion requires a reinterp
#include <iostream>
#include <sstream>
#include <string>
#include <cstdio>
using namespace std;
int main()
{
string name="Niels Stroustrup";
string s=name.substr(6,10);
name.replace(0,5,"Nicholas");
printf("name:%s\n",name.c_str());
}
试试
在所有头文件后面加上一句
using namespace std;
name是什么数据类型，是个类么？，还有那种用法吗，能给它直接那样赋值？我怎么不知道，
呵呵C++......呵呵string型......你真厉害......
能把stdio.h发来吗?