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ch9_11.cpp
资源名称:c.rar [点击查看]
上传用户:puke2000
上传日期:2022-07-25
资源大小:912k
文件大小:0k
源码类别:
C#编程
开发平台:
Visual C++
- //**********************
- //** ch9_11.cpp **
- //**********************
- #include <iostream.h>
- bool CircleArea()
- {
- double* pd=new double;
- if(!pd){
- cout <<"error memory allocation!";
- return true;
- }
- double& rd=*pd;
- cout <<"the radius is: ";
- cin >>rd;
- cout <<"the area of circle is " <<rd*rd*3.14 <<endl;
- delete &rd;
- return false;
- }
- void main()
- {
- if(CircleArea())
- cout <<"program failed.n";
- else
- cout <<"program successed.n";
- }