no matching symbolic information found

#include<iostream> using namespace std; void sphere(); void spx(); int main() { //sphere(); spx(); return 0; } void sphere() { double radius; cout<<"Please input radius:"; cin>>radius; if (radius<0) return; cout<<"The result is "<<radius*radius*3.14*4<<"/n"; } void spx() { for (int x=1;x<=10;++x) { for (int y=1 ;y<=x;++y) { cout<<"*"; } cout<<"/n"; } }

 

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Loaded 'ntdll.dll', no matching symbolic information found.
Loaded 'C:/WINDOWS/system32/kernel32.dll', no matching symbolic information found.
Loaded 'C:/WINDOWS/system32/shimeng.dll', no matching symbolic information found.
The thread 0xDD4 has exited with code 0 (0x0).
The program 'D:/960174/MY DOCUMENTS/VC/ex/Debug/ex.exe' has exited with code 0 (0x0).

錄入完成後,按 F5 運行程序,可是卻顯示不出結果,

 

程序本身並沒有錯,爲什麼會報錯呢,

 

經過分析:原來是程序沒有重新編譯所致,按 F7重新編譯後,F5 可以正常執行.