4[分析题]
#include<iostream.h> void main() {     int a=2,b=5,c=4;        if(a b>10)c=a*b;else c=3*a b;        if(c<=20) cout<<c*c;else cout<<4 c-5;        cout<<endl;        a=a b;b=a b;c=a b c;    cout<<”a,b,c=”<<a<<’,’<<b<<’,’<<c<<endl; }