withdraw.c

来自「多用户银行系统」· C语言 代码 · 共 40 行

#include<stdio.h>
#include<sys/types.h>
int deposit(int index){
	USER *user = (USER *)malloc(sizeof(USER));
	extern SHM *shm;
	/*int shmid;
	key_t key;
	SHM *shm;
	
	key = ftok("/root/test.c",0);
	shmid = shmget(key,SHM_SIZE,0600);
	shm = (SHM *)shmat(shmid,NULL);
	*/	
	int a;
	int b;
	readdb((shm->swap_arr)[index].swap.inta,user);
	a = strcpy((shm->swap_arr)[index].swap.chara,user.name);
	b = strcpy((shm->swap_arr)[index].swap.charb,user.pwd);
	
	if(a == 0){
		if(b == 0){
			if((shm->swap_arr)[index].swap.inta>user.money){
				printf("you have no enough money to draw!please try again!!");
				return;	
			}	
			user.money = user.money - (shm->swap_arr)[index].swap.inta;
			(shm->swap_arr)[index].swap.inta = user.money - (shm->swap_arr)[index].swap.inta;
			updatedb(user.name,user.pwd,user.id,user.money);
		}else{
			printf("wrong password!");
			return;	
		}
			
	}else{
		printf("user is not exist!");
		return;	
	}

}