python 3获取错误类型错误’＆lt;’

python 3 getting error type error '<' not supported between instances of 'int and 'str'

def挑战()：name=input('您好，请输入您的姓名？：'如果为真：choice=input('hi'+name+'有30个挑战需要查看。请输入您在1、2、3、4、5、6、7、8、9、10、11、12、13、14、15'之间的选择：')如果choice='1'：user_age=int(input('您多大了？：")print('您是'，用户年龄，'岁')

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elif choice == '2':
user_num1 = int(input('Hi '+Name+' please enter your first number: '))
user_num2 = int(input('Please enter your second number: '))
total = user_num1+user_num2
average = total/2
print (average)

elif choice == '3':
width = int(input('Please enter your width: '))
height = int(input('Please enter your height: '))
area = width*height
print ('the area of your rectangle is',area,'cm')

elif choice == '4':
user_num3= int(input(+Name+' please enter a number: '))
user_num4= int(input('Now enter a second number: '))
div= user_num3/user_num4
print(div)

elif choice == '5':
Name = input('Hello Please enter your name?: ')
user_fav_sub = input('What is your favourite subject?: ')
print ('OMG '+user_fav_sub+' is my favourite aswell')

elif choice == '6':
Name = input ('Hello what is your name?: ')
if Name =='Zak':
print ('You\'re cool')
else:
print ('Nice to meet you')

elif choice == '7':
user_tv = input ('Hi '+Name+' how long do you spend watching TV?: ')
if user_tv <= '2':
print ('That shouldn\'t rit your brain too much')
elif user_tv<='4':
print ('Aren\'t you getting square eyes')
else:
print ('Fresh air beats channel flicking')

elif choice == '8':
user_mark = int(input('Hi '+Name+' how many marks did you get on your test?: '))

这就是问题所在

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if user_mark < '35':
print ('You got a grade D')
elif user_mark>='35':
print ('You got a grade C')
elif user_mark>='60':
print ('You got a grade B')
else:
print('You got an A')

else:
print('Sorry incorect input please try again')

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您不检查用户的输入…

下面的代码适用于您：

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def isInt(value):
try:
int(value)
return True
except ValueError:
print('Sorry, must enter a number...')
return False

def intInRange(value,num1, num2):
if isInt(value):
value = int(value)
if value in range(num1, num2):
return True
print('Enter a number between:',num1,'to',num2)
return False

def challenges():
Name = input('Hello Please enter your name: ')
print('Hi ' + Name + ', there are 8 challenges to review')
choice = 'Go'
while not choice == 'Exit':
options = '
*** Options ***' \
'
1. How old are you?' \
'
2. Average' \
'
3. Rectangle area' \
'
4. Divide' \
'
5. Favorite' \
'
6. What is your name?' \
'
7. How much time do you spend on T.V?' \
'
8. Grade check' \
'
To stop, enter Exit'

print(options)

choice = input('
Please enter your choice between 1,2,3,4,5,6,7,8: ')
while not intInRange(choice, 1, 15):
print(options)
choice = input('
Please enter your choice between 1,2,3,4,5,6,7,8: ')

choice = int(choice)
if choice == 1:
user_age = input('How old are you?: ')
while not isInt(user_age):
user_age = input('How old are you?: ')
print ('You are',user_age,'years old')

elif choice == 2:
user_num1 = input('Hi ' + Name + ' please enter your first number: ')
while not isInt(user_num1):
user_num1 = input('Hi ' + Name + ' please enter your first number: ')
user_num2 = int(input('Please enter your second number: '))
while not isInt(user_num2):
user_num2 = int(input('Please enter your second number: '))

total = int(user_num1) + int(user_num2)
average = total / 2
print(average)

elif choice == 3:
width = input('Please enter your width: ')
while not isInt(width):
width = input('Please enter your width: ')

height = input('Please enter your height: ')
while not isInt(height):
height = input('Please enter your height: ')
area = int(width) * int(height)
print('The area of your rectangle is', area, 'cm')

elif choice == 4:
user_num3 = input(Name + ' please enter a number: ')
while not isInt(user_num3):
user_num3 = input(Name + ' please enter a number: ')

user_num4 = input('Now enter a second number: ')
while not isInt(user_num4):
user_num4 = input('Now enter a second number: ')
div = int(user_num3) / int(user_num4)
print('The first number divided by the second number =',div)

elif choice == 5:
Name = input('Hello Please enter your name?: ')
user_fav_sub = input('What is your favourite subject?: ')
print('OMG ' + user_fav_sub + ' is my favourite as well')

elif choice == 6:
Name = input('Hello what is your name?: ')
if Name == 'Zax':
print('You\'re cool')
else:
print('Nice to meet you')

elif choice == 7:
user_tv = input('Hi ' + Name + ' how long do you spend watching TV?: ')
while not isInt(user_tv):
user_tv = input('Hi ' + Name + ' how long do you spend watching TV?: ')
user_tv = int(user_tv)
if user_tv <= 2:
print('That shouldn\'t rit your brain too much')
elif user_tv <= 4:
print('Aren\'t you getting square eyes')
else:
print('Fresh air beats channel flicking')

elif choice == 8:
user_mark = input('Hi ' + Name + ' how many marks did you get on your test?: ')
while not intInRange(user_mark,0,101):
user_mark = input('Hi ' + Name + ' how many marks did you get on your test?: ')

user_mark = int(user_mark)
if user_mark < 35:
print('You got a grade D')
elif user_mark in range(35,60):
print('You got a grade C')
elif user_mark in range(60,80):
print('You got a grade B')
else:
print('You got an A')

else:
print('Sorry incorrect input please try again')

challenges()

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def challenges():
Name = input('Hello Please enter your name?: ')
while True:
choice = input('Hi '+Name+' there are 30 challenges to reveiw please enter your choice between 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15: ')
if choice == '1':
user_age = int(input('How old are you?: '))
print ('You are',user_age,'years old')

elif choice == '2':
user_num1 = int(input('Hi '+Name+' please enter your first number: '))
user_num2 = int(input('Please enter your second number: '))
total = user_num1+user_num2
average = total/2
print (average)

elif choice == '3':
width = int(input('Please enter your width: '))
height = int(input('Please enter your height: '))
area = width*height
print ('the area of your rectangle is',area,'cm')

elif choice == '4':
user_num3= int(input(+Name+' please enter a number: '))
user_num4= int(input('Now enter a second number: '))
div= user_num3/user_num4
print(div)

elif choice == '5':
Name = input('Hello Please enter your name?: ')
user_fav_sub = input('What is your favourite subject?: ')
print ('OMG '+user_fav_sub+' is my favourite aswell')

elif choice == '6':
Name = input ('Hello what is your name?: ')
if Name =='Zak':
print ('You\'re cool')
else:
print ('Nice to meet you')

elif choice == '7':
user_tv = input ('Hi '+Name+' how long do you spend watching TV?: ')
if user_tv <= '2':
print ('That shouldn\'t rit your brain too much')
elif user_tv<='4':
print ('Aren\'t you getting square eyes')
else:
print ('Fresh air beats channel flicking')

elif choice == '8':
user_mark = input('Hi '+Name+' how many marks did you get on your test?: ')
if user_mark < '35':
print ('You got a grade D')
elif user_mark>='35':
print ('You got a grade C')
elif user_mark>='60':
print ('You got a grade B')
else:
print('You got an A')

else:
print('Sorry incorect input please try again')

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