您好我正在制作一个列表维护程序，它将维护一个浮点值列表。我一直卡住了。 谁能帮我。 选项1是目前唯一可行的选项。
Option 3
Enter your choice: 3
Delete Value from List (by location in list): 2
Traceback (most recent call last):
File "C:/Python33/test 3.py", line 49, in <module>
main()
File "C:/Python33/test 3.py", line 14, in main
opt3()
File "C:/Python33/test 3.py", line 36, in opt3
list1.pop(delLocation)
TypeError: 'str' object cannot be interpreted as an integer
option 2
Enter your choice: 2
Delete Value from List (by value): 1
Traceback (most recent call last):
File "C:/Python33/test 3.py", line 49, in <module>
main()
File "C:/Python33/test 3.py", line 12, in main
opt2()
File "C:/Python33/test 3.py", line 33, in opt2
list1.remove(delValue)
ValueError: list.remove(x): x not in list
并且退出无效
我必须保持代码看起来像这样。
list1 = [1, 2, 3, 4, 5]
def main():
opt = -99
while opt != 0:
displayMenu()
opt = intImput("\n\nEnter your choice: ")
if opt == 1:
opt1()
elif opt == 2:
opt2()
elif opt == 3:
opt3()
elif opt == 4:
opt4()
elif opt == 0:
print("Exiting...")
else:
print("Enter a valid option")
def intImput(prompt):
try:
return int(input(prompt))
except:
print("That input is incorrect")
def opt1():
addValue=input("\nType in a value to add: ")
list1.append(addValue)
def opt2():
delValue=input("\nDelete Value from List (by value): ")
list1.remove(delValue)
def opt3():
delLocation=input("\nDelete Value from List (by location in list): ")
list1.pop(delLocation)
def opt4():
print(list1)
def opt0():
print("\nExit")
def displayMenu():
print("1.) Add Value to List\n")
print("2.) Delete Value from List (by value)\n")
print("3.) Delete Value from List (by location in list)\n")
print("4.) Display List\n")
print("\n\n0.) Exit")
main()