python-3.数字运算,变量,格式化输出

短命女 2022-02-17 06:09 286阅读 0赞

## exercise 3 数字运算 ##

> 加减乘除,注意运算顺序

print("I will now count my chickens:")
    print("Hens",25+30/6)
    print("Roosters",100-25*3*4)
    print("Now I will cout the eggs:")
    
    print(3+2+1-5+4%2-1/4+6)
    print("Is it true that 3+2<5-7?")
    
    print(3+2<5-7)
    print("What is 3+2?",3+2)
    print("What is 5-7?",5-7)
    print("Oh, that's why it's false.")
    print("How about some more.")
    print("Is it greater?",5>=-2)
    print("Is it less or equal?",5<=-2)
    
    
    print(20.0+3.75)
    print(10/0.1)

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## exercise 4 变量 ##

> 左边变量名,右边值,字符串需要用单引号括起来

cars=100
    space_in_a_car=4
    drivers=30
    passengers=90
    cars_not_driven=cars-drivers
    cars_driven=drivers
    carpool_capacity=cars_driven*space_in_a_car
    average_passengers_per_car=passengers/cars_driven
    
    print("There are",cars,"cars available.")
    print("There are only",drivers,"drivers availabe.")
    print("There will be",cars_not_driven,"empty cars today.")
    print("we can transport",carpool_capacity,"people today")
    print("We have",passengers,"to carpool today")
    print("We need to put about",average_passengers_per_car,"in each car")

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3poZXpoZWJpZQ_size_16_color_FFFFFF_t_70 1]

## exercise 5 格式化输出 ##

my_name = 'Zed A. Shaw'
    my_age = 35 # not a lie
    my_height = 74 # inches
    my_weight = 180 # lbs
    my_eyes = 'Blue'
    my_teeth = 'White'
    my_hair = 'Brown'
    
    print(f"Let's talk about {my_name}")
    print(f"He's {my_height} inches tall.")
    print(f"He's {my_weight} pounds heavy.")
    print(f"Actually that's not too heavy.")
    print(f"He's got {my_eyes} eyes and {my_hair} hair.")
    print(f"His teeth are usually {my_teeth} depending on the coffice.")
    
    # this line is tricky, try to get it exactly right
    total = my_age + my_height + my_weight
    print(f"If I add {my_age}, {my_height}, and {my_weight} I get {total}")
    
    name='阳水平'
    height=176 # cm
    weight=60 # kg
    hair='黑'
    email='1037547965@qq.com'
    
    print(f"我的名字叫做{name}")
    print(f"我的身高是{height}cm")
    print(f"我的体重是{weight}kg")
    print(f"我的头发是{hair}色的")
    print(f"我的邮箱是{email}")

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3poZXpoZWJpZQ_size_16_color_FFFFFF_t_70 2]

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