devc++怎么用，刚下了个怎么很难上手啊？

[nuke505]

//--------------------------------
#include<iostream.h>
//-------------------------------
void main()
{
int a,b;
cout <<"请输入两个数: ";
cin >> a >>b;
int min=a>b ? b : a;
int t;
for(int i=2;i<=min;i++)
if(a%i==0 && b%i==0)
t=i;

if (t==0)
cout << "no greatest command divisor.\n";
else
cout <<"the greatest command divisor is" << t ;
}

这个程序在VC6。0下能完全运行，但用DEVC++编译怎么这么多错误：
31 d:\Dev-Cpp\include\c++\backward\iostream.h
In file included from d:/Dev-Cpp/include/c++/backward/iostream.h
2 G:\C++exercises\7.cpp
from G:/C++exercises/7.cpp
2 d:\Dev-Cpp\include\c++\backward\backward_warning.h:32
#warning This file includes at least one deprecated or antiquated header. Please consider using one of the 32 headers found in section 17.4.1.2 of the C++ standard. Examples include substituting the <X> header for the <X.h> header for C++ includes, or <sstream> instead of the deprecated header <strstream.h>. To disable this warning use -Wno-deprecated.
5 G:\C++exercises\7.cpp
`main' must return `int'

[llmsn]

用VC++吧,不会太难懂调试一般的算法的话.

[superc1z]

return 0;
这句没写

[superc1z]

Warning 是警告不要紧的

[fanofvc]

vc不标准，以下是标准的c++写法，保证通过。
#include<iostream>
using namespace std;
//-------------------------------
int main()
{
int a,b;
cout <<"请输入两个数: ";
cin >> a >>b;
int min=a>b ? b : a;
int t;
for(int i=2;i<=min;i++)
if(a%i==0 && b%i==0)
t=i;

if (t==0)
cout << "no greatest command divisor.\n";
else
cout <<"the greatest command divisor is" << t ;
return 0;
}

[panwai]

t没有初始化吧

[yangyoung]

返回值return 0;
和名字空间问题：using namespace std;

[cxn0808]

同意 fanofvc(潜心研究C++) 的看法
强烈建议使用C++标准写法，去掉.h ，加上命名空间

[jilu0002]

devc++的标准库非常快，效率好像比vc还高，用到后面就爽了

[zjyu88]

虽然结贴了...但还说一说..
这个程序在VC6。0下能完全运行，但用DEVC++编译怎么这么多错误：
就说明VC6.0不如DEV C++~~