格式化字符串

輸出格式化字符串的兩種方式：

print(f"we have {beans} beans")
print("we have {} beans".format(beans))

 

#習題24

print("Let's practice everthing." )

print('You\'d  need to know \'bout escapes with \\ that do \n newlines and \t tabs.')

poem = """
\tThe lovely world
with logic so firmly planted
cannot discern \n the needs of love
nor comprehend passion from intuition
and requires an explanation
\n\t\twhere there is none.
"""

print ("------------")
print(poem)
print("-------------")

five = 10 - 2 + 3 - 6
print(f"This should be five:{five}")

def secret_formula(started):
    jelly_beans = started * 500
    jars = jelly_beans/1000
    crates = jars/100
    return jelly_beans,jars,crates

start_point = 10000
beans,jars,crates = secret_formula(start_point)

print(f"With a starting point of: {start_point}".format(start_point))    

print(f"We'd have {beans} beans ,{jars}jars,{crates}crates.")

start_point = start_point/10
print("We can also do that this way:")
formula = secret_formula(start_point)
print("WE's have {}beans,{}jars,{}crates.".format(*formula))