# 这次练习学习f函数的用法

types_of_people = 10    # 输入人数为10
x = f"There are {types_of_people} types of people."

binary = "binary"
do_not = "don't"
y = f"Those who know {binary} and those who {do_not}."

print(x) 

print(y)

print(f"I said: {x}")
print(f"I also said ：{y}")

