习题8：打印，打印

练习代码如下

# coding: utf-8
__author__ = 'www.py3study.com'
fORMatter = "{} {} {} {}"
print(formatter.format(1, 2, 3, 4))
print(formatter.format('one', 'two', 'three', 'four'))
print(formatter.format(True, False, False, True))
print(formatter.format(formatter, formatter, formatter, formatter))
print(formatter.format(
    "I had this thing.",
    "That you could type up right.",
    "But it didn't sing.",
    "So I said Goodnight.")
)

应该看到的结果

1 2 3 4
one two three four
True False False True
{} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {}
I had this thing. That you could type up right. But it didn't sing. So I said goodnight.

常见问题

为什么"one"要用引号，而True和False不需要?

因为True和False是python关键字，用来表示真假的意义，如果加了引号，就变成了字符串，也就无法实现它们本来的功能