打印格式字符串函数和变量(python)

definition of function & variable:

函数和变量的定义:

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

start_point = 10000 / 10

print statement:

print语句:

print """crazy different style:
startpoint: %d\n
beans:\t\t %d\n
jars:\t\t %d\n
crates:\t\t %d\n
""" % (start_point, (secret_formula(start_point)))

The error message I get is " %d format: a number is required, not a tuple. Please help me fix it. I´m really new to programming...or is it just not possible to pack a variable and a called function into the same formattet print?

我得到的错误消息是“%d格式:一个数字是必需的，而不是一个元组。请帮我修理一下。我真的´m新的编程…还是不可能将一个变量和一个被调用的函数打包到相同的formattet print中?

4 个解决方案

#1

#According to zen of python Explicit is better than implicit, so

bs, js, cs = secret_formula(start_point)

print """crazy different style:
startpoint: %d\n
beans:\t\t %d\n
jars:\t\t %d\n
crates:\t\t %d\n
""" % (start_point, bs, js, cs)

#2

Consider adding * in order to unpack the tuple (python 3.x solution):

考虑添加*以打开tuple (python 3)。x解决方案):

print ("""crazy different style:
startpoint: %d\n
beans:\t\t %d\n
jars:\t\t %d\n
crates:\t\t %d\n
""" % (start_point, *(secret_formula(start_point))))

If you're using python 2.x can type:

如果你使用的是python2。x可以输入:

start_point = 10000 / 10
res = secret_formula(start_point)
print """crazy different style:
startpoint: %d\n
beans:\t\t %d\n
jars:\t\t %d\n
crates:\t\t %d\n
""" % (start_point, res[0], res[1], res[2])

#3

Working on python 3

在python 3

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

start_point = 10000 / 10

print ("startpoint : {0} \n \
       beans:\t\t {1}  \n \
       jar :\t\t {2}".format(start_point,*secret_formula(start_point)[:2]))

output

输出

startpoint : 1000.0 
    beans:       500000.0  
    jar :        500.0

#4

a variant for in python 2:

python 2中的一种变体:

print """crazy different style:
startpoint: %d\n
beans:\t\t %d\n
jars:\t\t %d\n
crates:\t\t %d\n
""" % ((start_point, ) + secret_formula(start_point))

where i create a new tuple by adding the tuple (start_point, ) to the result of your function.

在这里，通过将tuple (start_point)添加到函数的结果中，创建一个新的tuple。

in python 3 you can unpack the tuple with a *:

在python 3中，您可以使用*:

print("""crazy different style:
startpoint: %d\n
beans:\t\t %d\n
jars:\t\t %d\n
crates:\t\t %d\n
""" % (start_point, *secret_formula(start_point)))

#1

#According to zen of python Explicit is better than implicit, so

bs, js, cs = secret_formula(start_point)

print """crazy different style:
startpoint: %d\n
beans:\t\t %d\n
jars:\t\t %d\n
crates:\t\t %d\n
""" % (start_point, bs, js, cs)

#2