从键盘输入1 81,则输出结果为void main(){ int mode,required,time; printf("1:快充\t2:慢充\n\n"); printf("请选择充电方式:(输入对应的数字)\n"); printf("请输入需求电量:\n");scanf("%d%d",&mode,&required); switch(mode) { case1: if(required>80) time=30+(required-80)*10; else time=30; break; case2: time=required*8;break; } printf("充电所需的时间是%d分钟",time);}