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#2
yuccn2011-06-11 10:19
 程序代码：#include <iostream> 楼主的函数什么和定义不统一啊 float fCir_S(float);using namespace std; const float PI = 3.1416; float fCir_L(float); float fCir_S(float); void main() { float r; //,s,l; cout<<"r="; cin>>r; cout<<fCir_L(r); cout<<"\n"; cout<<fCir_S(r); } float fCir_L(float x) { float z=-1.0; if (x>=0.0) z=2*x*PI; return z; } float fCir_S(float a) { float z=-1.0; if (a>=0.0) z=a*a*PI; return z; } ，下面却是： float fCiir_L(float x) 以后多细心点。^_^ |
程序代码：#include <iostream.h>
const float PI = 3.1416;
float fCir_L(float);
float fCir_S(float);
main()
{
float r,s,l;
cout<<"r=";
cin>>r;
cout<<fCir_L(r);
cout<<"\n";
cout<<fCir_S(r);
}
float fCiir_L(float x)
{
float z=-1.0;
if (x>=0.0)
z=2*x*PI;
return z;
}
float fCir_S(float a)
{
float z=-1.0;
if (a>=0.0)
z=a*a*PI;
return z;
}
const float PI = 3.1416;
float fCir_L(float);
float fCir_S(float);
main()
{
float r,s,l;
cout<<"r=";
cin>>r;
cout<<fCir_L(r);
cout<<"\n";
cout<<fCir_S(r);
}
float fCiir_L(float x)
{
float z=-1.0;
if (x>=0.0)
z=2*x*PI;
return z;
}
float fCir_S(float a)
{
float z=-1.0;
if (a>=0.0)
z=a*a*PI;
return z;
}
编译环境是Win 7 64bit
Visual Studio 2010
编译时候给的信息:
1>------ Build started: Project: nimei, Configuration: Debug Win32 ------
1>Build started 2011/6/11 0:13:27.
1>InitializeBuildStatus:
1> Touching "Debug\nimei.unsuccessfulbuild".
1>ManifestResourceCompile:
1> All outputs are up-to-date.
1>LINK : error LNK2001: unresolved external symbol _mainCRTStartup
1>c:\users\sirius4simky\documents\visual studio 2010\Projects\nimei\Debug\nimei.exe : fatal error LNK1120: 1 unresolved externals
1>
1>Build FAILED.
1>
1>Time Elapsed 00:00:00.18
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========
Google 了一下,说是无法找到main函数,据说在Project Properties里面引用一个库?
没有找到具体的操作,
还有说在linker 里面添加main为入口点,也木有找到这个地方,
请问各位应该怎么解决?
可是错误依旧啊,