Python_案例_if语句

if 语句里的 “或”条件

>>> twinkies=66

>>> if twinkies>500 or twinkies<100:
print("Either too little or too much!!")

else:
print("Just all right!!")

Either too little or too much!!

if 语句里的“和”条件：

>>> money=600

>>> if money<500 and money>100 or money<5000 and money>1000:
print("Just all right!!")

>>> if money<500 and money>100 or money<5000 and money>1000:
print("Either too little or too much!!")

else:
print("Just all right!!")

Just all right!!

if 语句“嵌套”：

>>> ninjas=5

>>> if ninjas<50: 
print("Too much!!")

elif ninjas<30:
print("A little difficlut,however,I can deal with it!!")

elif ninjas<10:
print("I can destroy those ninjas just like clear litter")

else:
print("I can't do it!!")

Too much!!

>>> if ninjas < 50:
print(ninjas)
print('c')
if ninjas <30:
print('b')
if ninjas <10:
print('a')

5

c

b

a

>>> ninjas=40

>>> if ninjas < 50:
print(ninjas)
print('c')
if ninjas <30:
print('b')
if ninjas <10:
print('a')

40

c