# include <iostream.h> void main() { int a,b,c,d,e,temp; cout<<"Please input a number to a\n"; cin>>a; temp=a;
b=(a++)+(a++)+(a++); cout<<"The calculation type of b is b =(a++)+(a++)+(a++)\n "; cout<<"The result is b="<<b<<"\n"; cout<<"Now a="<<a<<"\n\n";
a=temp; c=(++a)+(++a)+(++a); cout<<"The calculation type of c is c =(++a)+(++a)+(++a)\n "; cout<<"The result is c="<<c<<"\n"; cout<<"Now a="<<a<<"\n\n";
a=temp; d=(a++)+(++a)+(a++); cout<<"The calculation type of d is d=(a++)+(++a)+(a++)\n "; cout<<"The result is d="<<d<<"\n"; cout<<"Now a="<<a<<"\n\n";
a=temp; e=(++a)+(++a)+(a++); cout<<"The calculation type of e is e =(++a)+(++a)+(a++)\n "; cout<<"The result is e="<<e<<"\n"; cout<<"Now a="<<a; }
//vc 6.0编译通过,执行结果如下:

看看这些结果,你能想到程序的运算过程吗?? 在其他编译系统下试验一下上面的程序,得到的结果一样吗?? 如果你感兴趣可以试试~~ 
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