first commit

master
p75128094 7 years ago
parent 4e0551335a
commit 1d6aa6e189

@ -0,0 +1,39 @@
void qukuan()
{
float m;
int i,u;
FILE *fp=fopen("users.txt","r");
FILE *fpw=fopen("qukuan.txt","w");
printf("请输入您的取款金额: ");
scanf("%f",&m);
for(i=0;i<n;i++)
{
fscanf(fp,"%s %s %f\n",&zh[i].gUser,&zh[i].gMima,&zh[i].YuE);
if(i==h)
{
if(m<=zh[i].YuE)
{
printf("取款成功!\n");
printf("请取走您的钞票。\n");
zh[i].YuE=zh[i].YuE-m;
u=i;
fprintf(fpw,"%s %s %f\n",zh[i].gUser,zh[i].gMima,zh[i].YuE);
}
else
{
printf("您的余额不足,请重新输入。\n");
fclose(fp);fclose(fpw);
qukuan();break;
}
}
else
{
fprintf(fpw,"%s %s %f\n",zh[i].gUser,zh[i].gMima,zh[i].YuE);
}
}
printf("您的当前余额:%.3f\n",zh[u].YuE);
fclose(fp);fclose(fpw);
remove("users.txt");
rename("qukuan.txt","users.txt");
}
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