一、条件语句
1、if <条件>:
age = int(input('Please enter your age:'))
if age >= 18:
print(f' Your age is { age } , and you are an adult with Internet access.')
else:
print(f'Your age is { age } , please go home and do your homework.')
2、多重判断
score = int(input('Please enter your scores:'))
if score < 60:
print(f'Your score is a {score}, grade is "E" .')
elif (score < 70):
print(f'Your score is a {score}, grade is "D" .')
elif (score < 80):
print(f'Your score is a {score}, grade is "C" .')
elif (score < 90):
print(f'Your score is a {score}, grade is "B" .')
else:
print(f'Your score is a {score}, grade is "A" .')
Python 没有分支(switch)语句,可以使用多重条件语句实现。