题目内容

枚举类型的关键字是______

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输出程序运行结果。#include main(){enumweek{Sunday,Monday,Tuesday,Wednesday,Thursday,Friday,Saturday};enum week day;int x;printf("please input a num:");scanf("%d",&x);day=(enum week)x;printf("Today is :");switch(day){case Sunday:printf("Sunday\n");break;case Monday: printf("Monday\n");break;case Tuesday: printf("Tuesday\n");break;case Wednesday: printf("Wednesday\n");break;case Thursday: printf("Thursday\n");break;case Friday: printf("Friday\n");break;case Saturday: printf("Saturday\n");break;}}

若有以下定义和语句以下是引用片段：#includeint a=4,b=3,p,q,*w;p=&a; q=&b; w=q; q=NULL;则以下选项中错误的语句是

A) *q=0;
B) w=p;
C) *p=a;
D) *p=*w;

若有说明：int i, j=2，*p=&i;，则能完成i=j赋值功能的语句是

A) i=*p;
B) p*=*&j;
C) i=&j;
D) i=**p;

１．若p为指针变量，y为变量，则y = *p++；的含义是

A．y=*p;p++
B．y=(*p)++
C．y=p;p++
D．p++;y=*p