我正在用python制作一个菜单,需要:
我是Python新手,我不知道我在代码上做错了什么。
到目前为止,这是我的代码:
ans=True
while ans:
print (""""
1.Add a Student
2.Delete a Student
3.Look Up Student Record
4.Exit/Quit
"""")
ans=input("What would you like to do?"
if ans=="1":
print("\nStudent Added")
elif ans=="2":
print("\n Student Deleted")
elif ans=="3":
print("\n Student Record Found")
elif ans=="4":
print("\n Goodbye")
elif ans !="":
print("\n Not Valid Choice Try again")
回答
这显然是他想要的:
menu = {}
menu['1']="Add Student."
menu['2']="Delete Student."
menu['3']="Find Student"
menu['4']="Exit"
while True:
options=menu.keys()
options.sort()
for entry in options:
print entry, menu[entry]
selection=raw_input("Please Select:")
if selection =='1':
print "add"
elif selection == '2':
print "delete"
elif selection == '3':
print "find"
elif selection == '4':
break
else:
print "Unknown Option Selected!"
这样就可以了。你丢失了一个
)
,你只需要"""
,而不是其中的4个。最后也不需要elif。只需要做一些小的修改:
我已将四个引号改为三个(这是多行引号所需的数字),在
"What would you like to do? "
后添加了一个右括号,并将输入改为原始输入。相关问题 更多 >
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