请帮我看一下输入怎么没有用的

Question

#include <stdio.h>#include<string.h>#include<stdlib.h>  #define TEACHERCOUNT 3 //定义学生人数数组大小 struct str_teacher{ char number[20]; // 工号 char name[20]; // 姓名 char phone[20]; // 联系方式 float baseSalary; // 基本工资};typedef struct str_teacher Teacher;void outputteacher(Teacher teacher);void inputteacher( Teacher   * teacher);void inputteachers( Teacher teachers[], int *count  );int findteacherByNumber(Teacher teachers[] , char number[], int count ){ int i=0; for(i=0;i<count;i++) { if(strcmp(teachers[i].number,number)==0) return i ; } return -1;}void  main (){ int choice; Teacher    teachers   [TEACHERCOUNT]; int count; int i; int index; char number[20];   printf("欢迎使用学生信息管理系统！\n"); do{ printf("1.输入2.输出3.插入4.删除5.修改6.查找7.排序8.保存9.加载0.退出\n"); printf("请选择:"); scanf("%d",&choice); switch(choice) { case 1:// 输入 inputteachers( teachers, &count ); break; break; case 2: //输出 printf("工号\t姓名\t联系方式\t基本工资\t个人所得税\t实发工资\n"); for(i=0;i<count;i++) { outputteacher( teachers[i]); } break; case 3:// 插入 printf("请输入要插入的位置："); scanf(" %d",&index); for(i=0;i>=index;i++) { teachers[i]=teachers[i-1]; } inputteacher(&teachers[i]); count++; break; case 4:  //删除 printf("请输入要删除的学号："); scanf(" %s",number); index=findteacherByNumber(teachers,number,count)+1; if(index<0) printf("未找到该学号。\n"); else { for(i=index-1;i<count-1;i++) { teachers[i]=teachers[i+1]; } count--; } break; case 5: // 修改 break; case 6:  //查找 break; case 7: // 排序 break; case 8 : // 保存 break; case 9: // 加载 break; case 0: default: break; } }while(choice!=0);}void inputteacher(Teacher *  pTeacher){ printf("请输入学号："); scanf(" %s",pTeacher->number); printf("请输入姓名："); scanf(" %s",pTeacher->name); printf("请输入联系方式："); scanf(" %s",pTeacher->phone); printf("请输入基本工资："); scanf("%.2f",pTeacher->baseSalary); }void inputteachers(Teacher  teachers[], int *count ){ int i; char choice; for(i=0;i<TEACHERCOUNT;i++) { inputteacher(&teachers[i]); (*count)++; printf("是否继续（Y/N）：\n"); scanf(" %c",&choice); if(choice!='Y' && choice!='y') break; }}void outputteacher(Teacher Teacher){ printf("%s\t",Teacher.number);//输出学号 printf("%s\t",Teacher.name); printf("%s\t",Teacher.phone);// 输出姓名 printf("%s\t",Teacher.baseSalary); // 输出性别}

Answer 1

你这个是后台的啊，我只会前端的哦

Answer 2

 1.主函数里变量count没有初始化为0

2.输入语句scanf没有精度控制。
     //scanf("%.2f",pTeacher->baseSalary);非法