golang 学生管理

package main
import (
 "fmt"
 "os"
)
type Student struct{
 id int
 name string
 age int
 classroom int
 dorm int
}
var students []*Student
type ManageStudent struct{}
func (m *ManageStudent) AddStudent(s *Student){
 students = append(students, s)
 fmt.Println("add success")
}
func (m *ManageStudent) DelStudent(id int){
 var is_find = false
 for index, student := range students{
 if student.id == id{
 is_find = true
 new_students := append(students[:index], students[index+1:]...)
 students = new_students
 fmt.Println("delete success")
 }
 }
 if !is_find{
 fmt.Println("no found")
 }
}
func (m *ManageStudent) showMenu(){
 fmt.Println("---------------------------------")
 fmt.Println("1.add student")
 fmt.Println("2.delete student")
 fmt.Println("3.modify student")
 fmt.Println("4.query student")
 fmt.Println("5.show all student")
 fmt.Println("6.exit")
 fmt.Println("---------------------------------")
 var option string
 fmt.Printf("input option:")
 fmt.Scanf("%s\n", &option)
 switch option{
 case "1":
 fmt.Println("add student")
 fmt.Printf("input student id:")
 var id int
 fmt.Scanf("%d\n", &id)
 fmt.Printf("input student name:")
 var name string
 fmt.Scanf("%s\n", &name)
 fmt.Printf("input student age:")
 var age int
 fmt.Scanf("%d\n", &age)
 fmt.Printf("input classroom:")
 var classroom int
 fmt.Scanf("%d\n", &classroom)
 fmt.Printf("input dorm:")
 var dorm int
 fmt.Scanf("%d\n", &dorm)
 var student = new(Student)
 student.id = id
 student.name = name
 student.age = age
 student.classroom = classroom
 student.dorm = dorm
 m.AddStudent(student)
 case "2":
 fmt.Printf("input student id:")
 var id int
 fmt.Scanf("%d\n", &id)
 m.DelStudent(id)
 case "3":
 fmt.Printf("input student id:")
 var id int
 fmt.Scanf("%d\n", &id)
 m.modifyStudent(id)
 case "4":
 fmt.Printf("input student id:")
 var id int
 fmt.Scanf("%d\n", &id)
 m.queryStudent(id)
 case "5":
 m.showAllStudent()
 case "6":
 fmt.Println("bye bye...")
 os.Exit(0)
 }
}
func (m *ManageStudent) showAllStudent(){
 for _, student := range students{
 fmt.Printf("id=%d \t name=%s \t age=%d \t classroom=%d \t dorm=%d\n",
 student.id, student.name, student.age, student.classroom, student.dorm)
 }
 if len(students) == 0{
 fmt.Println("Data is empty")
 }
}
func (m *ManageStudent) modifyStudent(id int){
 var is_find = false
 for _, student := range students{
 if student.id == id{
 fmt.Printf("input student name:")
 var name string
 fmt.Scanf("%s\n", &name)
 fmt.Printf("input student age:")
 var age int
 fmt.Scanf("%d\n", &age)
 fmt.Printf("input classroom:")
 var classroom int
 fmt.Scanf("%d\n", &classroom)
 fmt.Printf("input dorm:")
 var dorm int
 fmt.Scanf("%d\n", &dorm)
 student.name = name
 student.age = age
 student.classroom = classroom
 student.dorm = dorm
 is_find = true
 fmt.Println("modify success")
 }
 }
 if !is_find{
 fmt.Println("no found")
 }
}
func (m *ManageStudent) queryStudent(id int){
 var is_find = false
 for _, student := range students{
 if student.id == id{
 fmt.Printf("id=%d \t name=%s \t age=%d \t classroom=%d \t dorm=%d\n",
 student.id, student.name, student.age, student.classroom, student.dorm)
 is_find = true
 }
 }
 if !is_find{
 fmt.Println("no found")
 }
}
func main() {
 var manage = new(ManageStudent)
 for{
 manage.showMenu()
 }
}

本文来自:简书

感谢作者:就超棒

查看原文:golang 学生管理

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