# string
slogan  = "I've finished my homework!"
slogan2 = '我已经写完了作业!'
str3    = '2.98'

print(slogan)
print(slogan2)
print(str3)

# string template
what = "橙子"
when = "昨天"
how_many = 2

txt = f"我{when}吃了{how_many}个{what}"
print(txt)

# 千万不要打错试一试
print(f"我{when}吃了{how_many:.3f}个{when}")

how_many = 1.5
print(f"我{when}吃了{how_many:.2f}个{what}")

answer = 4 / 3
print(f"1) 4367 - 112 x 34 = {answer:.3}")