下面程序执行的结果是 。#includeint f(int);int main(){int z;z=f(4);printf("%d\n",z);return 0;}int f(int x){if(x==0||x==1)return 3;elsereturn x*x-f(x-2);}
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下面程序执行的结果是 。#includeint f(int );int main(){int z;z=f(5);printf("%d\n",z);return 0;}int f(int n){if(n==1||n==2)return 1;elsereturn f(n-1)+f(n-2);}
下面程序的运行结果是 。#includeint f1(int,int);int f2(int,int);int main(){int a=4, b=3, c=5;int d, e, f;d=f1(a,b);d=f1(d,c);e=f2(a,b);e=f2(e,c);f=a+b+c-d-e;printf("%d,%d,%d\n",d ,f, e);return 0;}int f1(int x, int y){return x>y?x:y;}int f2(int x, int y){return x>y?y:x;}
以下程序运行后的输出结果是 。#include int fun(int);int main(){int i,a=5;for(i=0;i<3;i++)printf("%d ",fun(a));printf("\n");return 0;}int fun(int a){int b=0;static int c=3;b++;c++;return(a+b+c);}
Python 中判断继承的两个函数是
A. isinstance()
B. checkinstance()
C. issubclass()
D. ifsubclass()