|
|
def input_info():
|
|
|
infile_info = open('infile.txt', 'a') # 以追加的方式向文件中写入数据，如果文件不存在就创建一个文件
|
|
|
flag = 'y'
|
|
|
# 向文件中录入课程信息，每一个课程的信息单独占一行
|
|
|
while flag == 'y' or flag == 'Y':
|
|
|
stu_id = input("请输入课程编号：")
|
|
|
stu_name = input("请输入课程名称：")
|
|
|
stu_score_eng = input("请输入课程性质：")
|
|
|
stu_score_py = input("请输入总学时：")
|
|
|
stu_score_hour = input("请输入授课学时：")
|
|
|
stu_score_shour = input("请输入实验学时：")
|
|
|
stu_score_credit = input("请输入学分：")
|
|
|
stu_score_term = input("开课学期：")
|
|
|
stu_info = stu_id + '\t\t\t' + stu_name + '\t\t\t' + stu_score_eng + '\t\t\t' + stu_score_py + '\t\t\t' + stu_score_hour +'\t\t\t' +stu_score_shour+ '\t\t\t' +stu_score_credit +'\t\t\t' +stu_score_term +'\t\t\t'+'\n'
|
|
|
|
|
|
infile_info.write(stu_info)
|
|
|
flag = input("是否继续添加学生信息？y/n")
|
|
|
print("信息录入完毕！！！")
|
|
|
infile_info.close()
|
|
|
# 查询课程信息
|
|
|
# 查询时分为按课程号和按课性质查找两种
|
|
|
def find_info():
|
|
|
flag = 'y'
|
|
|
while flag == 'y' or flag == 'Y':
|
|
|
n = 0
|
|
|
m = 0 # 定义m，n是为了用作判断文件中是否有此课程的标记
|
|
|
findfile_info = open('infile.txt', 'r') # 以可读方式打开文件
|
|
|
line_info = findfile_info.readlines()
|
|
|
find_nid = input("按课程号查找请输入1，按课程性质查找请输入2：") # 查询时分为按课程号和按课性质查找两种
|
|
|
if find_nid == '1':
|
|
|
find_id = input('请输入课程号：')
|
|
|
for line in line_info:
|
|
|
if find_id in line:
|
|
|
print(line)
|
|
|
n = n + 1
|
|
|
if n == 0:
|
|
|
print("没有查询到课程信息，无数据显示！！！")
|
|
|
if find_nid == '2':
|
|
|
find_eng = input('请输入课程性质：')
|
|
|
for line in line_info:
|
|
|
if find_eng in line:
|
|
|
print(line)
|
|
|
m = m + 1
|
|
|
if m == 0:
|
|
|
print("没有查询到课程信息，无数据显示！！！")
|
|
|
findfile_info.close()
|
|
|
flag = input("是否继续查询课程信息？y/n")
|
|
|
#学生选修课程
|
|
|
def choos_sourse():
|
|
|
infile_info = open('student.txt', 'a')
|
|
|
findfiles_info = open('infile.txt', 'r') # 以可读方式打开文件
|
|
|
lines_info = findfiles_info.readlines()
|
|
|
student_name=input('输入你的姓名：')
|
|
|
choos_id = input('请输入课程名(若无此课程，自动退出！)：')
|
|
|
for line in lines_info:
|
|
|
if choos_id in line:
|
|
|
print('选课成功！')
|
|
|
choos_info = student_name + '\t\t\t' + choos_id + '\n'
|
|
|
infile_info.write(choos_info)
|
|
|
# 统计课程总数
|
|
|
def sum_info():
|
|
|
sumfile_info = open('infile.txt', 'r')
|
|
|
line_info = sumfile_info.readlines()
|
|
|
sum_stu = len(line_info) # 写出列表中的元素个数
|
|
|
print("一共有{0}门课程。".format(sum_stu))
|
|
|
sumfile_info.close()
|
|
|
# 显示课程信息
|
|
|
def show_info():
|
|
|
print("课程编号", end='\t\t')
|
|
|
print("课程名称", end='\t\t')
|
|
|
print("课程性质", end='\t\t')
|
|
|
print("总学时", end='\t\t')
|
|
|
print("授课学时", end='\t\t')
|
|
|
print("实验学时", end='\t\t')
|
|
|
print("学分", end='\t\t')
|
|
|
print("开课学期", end='\t\t')
|
|
|
print('\n')
|
|
|
showfile_info = open('infile.txt', 'r')
|
|
|
line_info = showfile_info.readlines()
|
|
|
for line in line_info: # 遍历列表，输出各个元素
|
|
|
print(line)
|
|
|
showfile_info.close()
|
|
|
#显示选课信息
|
|
|
def show_chooses():
|
|
|
print("姓名", end='\t\t')
|
|
|
print("已选课程", end='\t\t')
|
|
|
print('\n')
|
|
|
showfile_info = open('student.txt', 'r')
|
|
|
line_info = showfile_info.readlines()
|
|
|
for line in line_info: # 遍历列表，输出各个元素
|
|
|
print(line)
|
|
|
showfile_info.close()
|
|
|
def show_choose():
|
|
|
print("==========================学生选修课程系统==========================")
|
|
|
print()
|
|
|
print("-----------------------------功能菜单------------------------------")
|
|
|
print()
|
|
|
print(" 1.录入选课信息")
|
|
|
print(" 2.查找课程信息")
|
|
|
print(" 3.显示选修课程")
|
|
|
print(" 4.学生选修课程")
|
|
|
print(" 5.统计课程总数")
|
|
|
print(" 6.学生选课信息")
|
|
|
print(" 0.退出选修课程系统")
|
|
|
print()
|
|
|
print("------------------------------------------------------------------")
|
|
|
|
|
|
def main():
|
|
|
show_choose()
|
|
|
choose_menu = input("请选择：")
|
|
|
while choose_menu != '0':
|
|
|
if choose_menu == '1':
|
|
|
input_info()
|
|
|
if choose_menu == '2':
|
|
|
find_info()
|
|
|
if choose_menu == '3':
|
|
|
show_info()
|
|
|
if choose_menu == '4':
|
|
|
choos_sourse()
|
|
|
if choose_menu == '5':
|
|
|
sum_info()
|
|
|
if choose_menu == '6':
|
|
|
show_chooses()
|
|
|
choose_menu = input("请选择：")
|
|
|
print("欢迎您再次使用！！！")
|
|
|
|
|
|
|
|
|
main() |
