救命啊,跟着书本那么写指针代码,还是出错了
时间:2011-12-03
来源:互联网
#include <iostream>
using namespace std;
int main()
{
int * myballs =8 ;
cout<<"myballs are:"<<*myballs<<endl;
cout<<"address is:"<<myballs<<endl;
*myballs=*myballs+1;
cout<<"now,myballs are:"<<*myballs<<endl;
cin.get();
return 0;
}
执行了之后
--------------------Configuration: zhizhen - Win32 Debug--------------------
Compiling...
zhizhen.cpp
F:\Program Files\c++\b\zhizhen.cpp(5) : error C2440: 'initializing' : cannot convert from 'const int' to 'int *'
Conversion from integral type to pointer type requires reinterpret_cast, C-style cast or function-style cast
执行 cl.exe 时出错.
zhizhen.exe - 1 error(s), 0 warning(s)
using namespace std;
int main()
{
int * myballs =8 ;
cout<<"myballs are:"<<*myballs<<endl;
cout<<"address is:"<<myballs<<endl;
*myballs=*myballs+1;
cout<<"now,myballs are:"<<*myballs<<endl;
cin.get();
return 0;
}
执行了之后
--------------------Configuration: zhizhen - Win32 Debug--------------------
Compiling...
zhizhen.cpp
F:\Program Files\c++\b\zhizhen.cpp(5) : error C2440: 'initializing' : cannot convert from 'const int' to 'int *'
Conversion from integral type to pointer type requires reinterpret_cast, C-style cast or function-style cast
执行 cl.exe 时出错.
zhizhen.exe - 1 error(s), 0 warning(s)
作者: shandianhuanbing 发布时间: 2011-12-03
指针是不能这样初始化的,这样相当于指针指向地址8,做指针解除一定会出错啊
[code=C/C++]
int a = 8;
int* myballs = &a;
[/code]
这样才行
[code=C/C++]
int a = 8;
int* myballs = &a;
[/code]
这样才行
作者: feiyuren 发布时间: 2011-12-03
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