这个实例很简单，，看一下就能明白，至于我已经对C比较熟悉了，为什么还要从这么简单的例子入手，这个需要再详细的说明一下。由于之前学习C的时候，就是急功近利，没有仔细的去品味C中，特别是指针中的一些乐趣，所以我选择从基础再学习一遍，就这样咯。
#include <stdio.h>/** * 实现自动取款机界面的模拟来学习使用switch语句 * switch…case语句的结构 * switch(int类型变量){ * case 1: //如果是1，进行相应的处理 * …. * break; * case 2: * …. * break; * default: //可有可无的，表示如果不是上面的所有 * …. * break; * } */int main(void){do{printf(“===================================\n”);printf(“: Please select the key::\n”);printf(“: 1: Query:\n”);printf(“: 2: Credit:\n”);printf(“: 3: Debit:\n”);printf(“: 4: Return:\n”);printf(“===================================\n”);int selected = 0;scanf(“%d”,&selected);switch(selected){case 1:printf(“===================================\n”);printf(“: Your balance is $1000:\n”);printf(“: Please enter any key to return :\n”);printf(“===================================\n”);getch();break;case 2:printf(“===================================\n”);printf(“: Please select credit money:\n”);printf(“: 1: $50:\n”);printf(“: 2: $100:\n”);printf(“: 3: return:\n”);printf(“===================================\n”);int credit = 0;scanf(“%d”,&credit);switch(credit){case 1:printf(“===================================\n”);printf(“: Your Credit money is $50:\n”);printf(“: Please enter any key to return :\n”);printf(“===================================\n”);getch();break;case 2:printf(“===================================\n”);printf(“: Your Credit money is $100:\n”);printf(“: Please enter any key to return :\n”);printf(“===================================\n”);getch();break;case 3:break;default:printf(“===================================\n”);printf(“: Op error!!:\n”);printf(“: Please enter any key to return :\n”);printf(“===================================\n”);getch();break;}break;case 3:printf(“===================================\n”);printf(“: Please select debit money:\n”);printf(“: 1: $50:\n”);printf(“: 2: $100:\n”);printf(“: 3: $500:\n”);printf(“: 4: $1000:\n”);printf(“: 5: return:\n”);printf(“===================================\n”);int debit = 0;scanf(“%d”,&debit);switch(debit){case 1:printf(“===================================\n”);printf(“: Your debit money is $50:\n”);printf(“: Please enter any key to return :\n”);printf(“===================================\n”);getch();break;case 2:printf(“===================================\n”);printf(“: Your debit money is $100:\n”);printf(“: Please enter any key to return :\n”);printf(“===================================\n”);getch();break;case 3:printf(“===================================\n”);printf(“: Your debit money is $500:\n”);printf(“: Please enter any key to return :\n”);printf(“===================================\n”);getch();break;case 4:printf(“===================================\n”);printf(“: Your debit money is $1000:\n”);printf(“: Please enter any key to return :\n”);printf(“===================================\n”);getch();break;case 5:break;default:printf(“===================================\n”);printf(“: Op error!!:\n”);printf(“: Please enter any key to return :\n”);printf(“===================================\n”);getch();break;}break;case 4:printf(“===================================\n”);printf(“: Thank you for your using:\n”);printf(“: Good Bye:\n”);printf(“===================================\n”);return;default:return;}}while(1);return 0;}
如果前世五百次眸回，才换来今生的擦肩而过。
