260 lines
8.5 KiB
Python
260 lines
8.5 KiB
Python
# -*- coding: UTF-8 -*-
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# https://blog.csdn.net/tian_123456789/article/details/78914692
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import os
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import re
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import numpy as np
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class Student: #定义一个学生类
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def __init__(self):
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self.name = ''
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self.ID =''
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self.score1 = 0
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self.score2 = 0
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self.score3 = 0
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self.sum = 0
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def searchByID(stulist, ID): #按学号查找看是否学号已经存在
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for item in stulist:
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if item.ID == ID:
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return True
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def Add(stulist,stu): #添加一个学生信息
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if searchByID(stulist, stu.ID) == True:
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print("学号已经存在！")
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return False
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stulist.append(stu)
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print (stu.name,stu.ID, stu.score1, stu.score2, stu.score3, stu.sum)
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print ("是否要保存学生信息？")
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nChoose = input("Choose Y/N")
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if nChoose == 'Y' or nChoose == 'y':
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file_object = open("students.txt", "a")
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file_object.write(stu.ID)
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file_object.write(" ")
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file_object.write(stu.name)
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file_object.write(" ")
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file_object.write(str(stu.score1))
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file_object.write(" ")
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file_object.write(str(stu.score2))
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file_object.write(" ")
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file_object.write(str(stu.score3))
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file_object.write(" ")
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file_object.write(str(stu.sum))
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file_object.write("\n")
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file_object.close()
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print (u"保存成功！")
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def Search(stulist, ID): #搜索一个学生信息
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print (u"学号 姓名 语文 数学 英语 总分")
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count = 0
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for item in stulist:
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if item.ID == ID:
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print (item.ID, '\t' ,item.name,'\t', item.score1,'\t',item.score2, '\t', item.score3, '\t',item.sum)
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break
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count = 0
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if count == len(stulist):
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print ("没有该学生学号！")
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def Del(stulist, ID): #删除一个学生信息
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count = 0
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for item in stulist:
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if item.ID == ID:
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stulist.remove(item)
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print ("删除成功！")
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break
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count +=1
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# if count == len(stulist):
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# print "没有该学生学号！"
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file_object = open("students.txt", "w")
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for stu in stulist:
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print (stu.ID, stu.name, stu.score1,stu.score2, stu.score3, stu.sum)
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file_object.write(stu.ID)
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file_object.write(" ")
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file_object.write(stu.name)
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file_object.write(" ")
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file_object.write(str(stu.score1))
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file_object.write(" ")
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file_object.write(str(stu.score2))
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file_object.write(" ")
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file_object.write(str(stu.score3))
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file_object.write(" ")
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file_object.write(str(stu.sum))
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file_object.write("\n")
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file_object.close()
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# print "保存成功！"
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file_object.close()
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def Change(stulist, ID):
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count = 0
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for item in stulist:
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if item.ID == ID:
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stulist.remove(item)
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file_object = open("students.txt", "w")
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for stu in stulist:
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#print li.ID, li.name, li.score
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file_object.write(stu.ID)
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file_object.write(" ")
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file_object.write(stu.name)
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file_object.write(" ")
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file_object.write(str(stu.score1))
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file_object.write(" ")
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file_object.write(str(stu.score2))
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file_object.write(" ")
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file_object.write(str(stu.score3))
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file_object.write(" ")
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file_object.write(str(stu.sum))
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file_object.write("\n")
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# print "保存成功！"
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file_object.close()
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stu = Student()
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stu.name = input("请输入学生的姓名")
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while True:
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stu.ID = input("请输入学生的ID")
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p = re.compile('^[0-9]{3}$')
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if p.match(stu.ID):
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break
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else:
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print ("输入的有错误！")
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while True:
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stu.score1 = int(input("请输入学生语文成绩"))
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if stu.score1 <= 100 and stu.score1 > 0 :
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break
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else:
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print ("输入的学生成绩有错误！")
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while True:
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stu.score2 = int(input("请输入学生数学成绩"))
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if stu.score2 <= 100 and stu.score2 > 0 :
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break
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else:
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print ("输入的学生成绩有错误！")
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while True:
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stu.score3 = int(input("请输入学生英语成绩"))
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if stu.score3 <= 100 and stu.score3 > 0 :
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break
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else:
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print ("输入的学生成绩有错误！")
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stu.sum = stu.score1 + stu.score2 + stu.score3
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Add(stulist,stu)
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def display(stulist): #显示所有学生信息
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print (u"学号 姓名 语文 数学 英语 总分")
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for item in stulist:
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print (item.ID, '\t' ,item.name,'\t', item.score1,'\t',item.score2, '\t', item.score3, '\t',item.sum)
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def Sort(stulist): #按学生成绩排序
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Stu = []
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sum_count = []
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for li in stulist:
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temp = []
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temp.append(li.ID)
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temp.append(li.name)
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temp.append(int(li.score1))
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temp.append(int(li.score2))
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temp.append(int(li.score3))
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temp.append(int(li.sum))
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sum_count.append(int(li.sum))
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Stu.append(temp)
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#print sum_count
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#print Stu;
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#print stulist
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insertSort(sum_count, stulist)
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#print stulist;
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display(stulist)
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def insertSort(a, stulist):
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for i in range(len(a)-1):
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#print a,i
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for j in range(i+1,len(a)):
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if a[i]<a[j]:
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temp = stulist[i]
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stulist[i] = stulist[j]
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stulist[j] = temp
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#return a
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def Init(stulist): #初始化函数
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print ("初始化......")
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file_object = open('students.txt', 'r')
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for line in file_object:
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stu = Student()
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line = line.strip("\n")
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s = line.split(" ")
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stu.ID = s[0]
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stu.name = s[1]
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stu.score1 = s[2]
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stu.score2 = s[3]
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stu.score3 = s[4]
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stu.sum = s[5]
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stulist.append(stu)
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file_object.close()
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print ("初始化成功！")
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main()
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def main(): #主函数 该程序的入口函数
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while True:
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print ("*********************")
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print (u"--------菜单---------")
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print (u"增加学生信息--------1")
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print (u"查找学生信息--------2")
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print (u"删除学生信息--------3")
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print (u"修改学生信息--------4")
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print (u"所有学生信息--------5")
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print (u"按照分数排序--------6")
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print (u"退出程序------------0")
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print ("*********************")
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nChoose = input("请输入你的选择：")
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if nChoose == "1":
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stu = Student()
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stu.name = input("请输入学生的姓名")
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while True:
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stu.ID = input("请输入学生的ID")
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p = re.compile('^[0-9]{3}$')
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if p.match(stu.ID):
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break
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else:
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print ("输入的有错误！")
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while True:
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stu.score1 = int(input("请输入学生语文成绩"))
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if stu.score1 <= 100 and stu.score1 > 0 :
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break
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else:
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print ("输入的学生成绩有错误！")
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while True:
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stu.score2 = int(input("请输入学生数学成绩"))
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if stu.score2 <= 100 and stu.score2 > 0 :
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break
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else:
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print ("输入的学生成绩有错误！")
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while True:
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stu.score3 = int(input("请输入学生英语成绩"))
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if stu.score3 <= 100 and stu.score3 > 0 :
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break
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else:
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print ("输入的学生成绩有错误！")
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stu.sum = stu.score1 + stu.score2 + stu.score3
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Add(stulist,stu)
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if nChoose == '2':
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ID = input("请输入学生的ID")
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Search(stulist, ID)
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if nChoose == '3':
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ID = input("请输入学生的ID")
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Del(stulist, ID)
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if nChoose == '4':
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ID = input("请输入学生的ID")
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Change(stulist, ID)
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if nChoose == '5':
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display(stulist)
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if nChoose == '6':
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Sort(stulist)
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if nChoose == '0':
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break
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if __name__ == '__main__':
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stulist =[]
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Init(stulist) |