1. 格式化输出的三种方式
name = 'Nick'
height = 180
weight = 140
# "My name is 'Nick', my height is 180, my weight is 140"
# 第一种%s格式化
print("My name is %s, my height is %s, my weight is %s" %(name, height, weight))
# 第二种.format格式化
print("My name is {}, my height is {}, my weight is {}".format(name, height, weight))
# 第三种f格式化
print(f"My name is {name}, my height is {height}, my weight is {weight}")