本文为大家分享了C语言银行储蓄系统源码，实现银行的各项功能，供大家参考，具体内容如下

#include <stdio.h> #include <stdlib.h> #include <conio.h> #include <string.h> void openaccount();//开户 void save();//存款 void withdraw();//取款 void showAccount();//查询 void transferAccounts();//转账 void reportLoss(); //挂失 void cancelLoss(); //解除挂失 void cancelAccount(); //注销账户 void updatePassword(); //更改密码 int load();//登陆账号 int accountnum=0;//定义全局变量，用来计算账户数目 int nowaccount=0;//登录成功是的账户 struct Bank { char account[20]; //账号 char password[10]; //密码 char name[20]; //用户名 int balance;//账户余额 int state;//状态 }; //结构体 struct Bank banks[100]; int load() { int right=0,i=0,j; int r1,r2; char ch; char account1[20]= {0}; char password1[10]= {0}; printf("登陆\n请输入账号：\n"); scanf("%s",account1); printf("请输入密码：\n"); while((ch=getch())!='\r') { password1[i++]=ch; putchar('*'); } for(j=0; j<accountnum; j++) { r1=strcmp(account1,banks[j].account); r2=strcmp(password1,banks[j].password); if(r1==0&&r2==0) { nowaccount=j; if(banks[j].state==0) { printf("登录成功！\n");//登录成功 right=1; } else if(banks[j].state==1) { printf("您的账户处于挂失状态,请解挂\n"); right=3; } else if(banks[j].state==2) { printf("账户已经销户\n"); right=2; } break; } } if(right==0) printf("登陆失败！\n"); return right; } int main() { int i=0,num; char a[100]; FILE *fp; if((fp=fopen("account.txt","r"))==NULL) { if((fp=fopen("account.txt","w"))==NULL) { printf("失败！\n"); exit(1); } } while(fscanf(fp,"%s%s%s%d%d",banks[i].account,banks[i].name,banks[i].password,&banks[i].balance,&banks[i].state)!=EOF) { accountnum++; i++; } fclose(fp); printf("欢迎来到我的银行\n"); while(1) { printf("请选择业务:\n"); printf("1.开户 2.存款 3.取款\n"); printf("4.查询 5.转账 6.挂失\n"); printf("7.解挂 8.销户 9.改密\n"); printf("-1.退出\n"); scanf("%s",a); num=atoi(a); if(num==1) openaccount();//开户 else if(num==2) save();//存款 else if(num==3) withdraw();//取款 else if(num==4) showAccount();//查询 else if(num==5) transferAccounts();//转账 else if(num==6) reportLoss(); //挂失 else if(num==7) cancelLoss(); //解挂 else if(num==8) cancelAccount(); //注销账户 else if(num==9) updatePassword(); //更改密码 else if(num==-1) { printf("欢迎下次再来\n"); break; } else printf("抱歉，没有此业务\n"); } if((fp=fopen("account.txt","w"))==NULL) { printf("失败！\n"); exit(1); } for(i=0; i<accountnum; i++) { fprintf(fp,"%s\t%s\t%s\t%d\t%d\n",banks[i].account,banks[i].name,banks[i].password,banks[i].balance,banks[i].state); } fclose(fp); return 0; } void openaccount() { int i=0,j=0; int r; char ch; char password1[10]= {0}; printf("账户（十位数）：\n"); scanf("%s",banks[accountnum].account); while(banks[accountnum].account[i]!='\0') i++; if(i!=10) { printf("输入账号有误\n"); return; } i=0; printf("姓名：\n"); scanf("%s",banks[accountnum].name); printf("密码：\n"); while((ch=getch())!='\r') { banks[accountnum].password[i++]=ch; putchar('*'); } printf("\n"); printf("再次输入密码：\n"); while((ch=getch())!='\r') { password1[j++]=ch; putchar('*'); } printf("\n"); r=strcmp(banks[accountnum].password,password1); if(r!=0) { printf("两次密码不相同，开户失败！\n"); return; } banks[accountnum].balance=0; banks[accountnum].state=0; accountnum++; printf("开户成功\n"); } void save() { if(load()!=1) return; char addmoney[10];//存入金额 int money;//将字符型转化为int型 int i=0; printf("存入金额:\n"); scanf("%s",addmoney); while(addmoney[i]!='\0') { if(addmoney[i]<'0'||addmoney[i]>'9') { printf("输入格式错误！\n"); return; } i++; } while(addmoney[i]!='\0') { if(i>9) { printf("金额超限\n"); return; } i++; } money=atoi(addmoney); if(money==0) { printf("存款失败\n"); return; } else { banks[nowaccount].balance+=money; printf("存款成功\n"); } } void withdraw() { if(load()!=1) return; char reducemoney[10];//取款金额 int money,i=0; printf("请输入取款金额\n"); scanf("%s",reducemoney); while(reducemoney[i]!='\0') { if(reducemoney[i]<'0'||reducemoney[i]>'9') { printf("输入格式错误！\n"); return; } i++; } while(reducemoney[i]!='\0') { if(i>9) { printf("金额超限\n"); return; } i++; } money=atoi(reducemoney); if(money==0) { printf("取款失败\n"); return; } else { if(money>banks[nowaccount].balance) printf("您的账户没有这么多余额,取款失败!\n"); else { banks[nowaccount].balance-=money; printf("取款成功\n"); } } } void showAccount() { if(load()!=1&&load()!=2) return; printf("您的账户信息如下：\n"); printf("账号：%s\t余额：%d\n",banks[nowaccount].account,banks[nowaccount].balance); } void transferAccounts() { if(load()!=1) return; char account1[20]; int i,judge=0,money,a; char tramoney[10]; printf("请输入您转入的账户\n"); scanf("%s",account1); for(i=0; i<accountnum; i++) { if(strcmp(account1,banks[i].account)==0) { a=i; judge=1; break; } } if(judge!=1) { printf("没有发现此账户\n"); return; } printf("请输入转账金额\n"); scanf("%s",tramoney); while(tramoney[i]!='\0') { if(tramoney[i]<'0'||tramoney[i]>'9') { printf("输入格式错误！\n"); return; } i++; } while(tramoney[i]!='\0') { if(i>9) { printf("金额超限\n"); return; } i++; } money=atoi(tramoney); if(money==0) { printf("转账失败\n"); return; } else { if(money>banks[nowaccount].balance) printf("您的账户没有这么多余额,转账失败!\n"); else { banks[nowaccount].balance-=money; banks[a].balance+=money; printf("转账成功\n"); } } } void reportLoss() { if(load()!=1) return; banks[nowaccount].state=1; printf("挂失成功\n"); } void cancelLoss() { int judge=0; if(load()==3) { printf("立即解挂请按1，退出请按0\n"); scanf("%d",&judge); if(judge==1) { banks[nowaccount].state=0; printf("解挂成功\n"); } } else if(load()==1) printf("账户正常\n"); } void cancelAccount() { int r; r=load(); if(r==2) { printf("账户已经销户\n"); return; } else if(r==3||r==0) return; else if(r==1) { printf("请将您的账户余额取完\n"); banks[nowaccount].state=2; banks[nowaccount].balance=0; printf("注销成功\n"); } } void updatePassword() { char newpassword1[10]= {0},newpassword2[10]= {0}; int i=0,j=0,r; char ch; if(load()!=1) return; printf("请输入新密码\n"); while((ch=getch())!='\r') { newpassword1[i++]=ch; putchar('*'); } printf("\n"); printf("再次输入密码：\n"); while((ch=getch())!='\r') { newpassword2[j++]=ch; putchar('*'); } printf("\n"); r=strcmp(newpassword1,newpassword2); printf("r:%d",r); if(r!=0) { printf("两次密码不相同，改密失败！\n"); return; } i=0; while(newpassword1[i]!='\0') { banks[nowaccount].password[i]=newpassword1[i]; i++; } printf("改密成功\n"); }

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