程序：

print("Mary had a little lamb.")

print("Its fleece was white as {}.".format('snow'))

print("And everywhere that Mary went.")

print("." * 10) # what′d that do?

end1 ="C"

end2 ="h"

end3 ="e"

end4 ="e"

end5 ="s"

end6 ="e"

end7 ="B"

end8 ="u"

end9 ="r"

end10 ="g"

end11 ="e"

end12 ="r"

?# watch that comma at the end. ?try removing it to see what happens

print(end1 +end2 +end3 +end4 +end5 +end6, end=' ' )

print(end7 +end8 +end9 +end10 +end11 +end12)

運行結果：

Mary had a little lamb.
Its fleece was white as snow.
And everywhere that Mary went.
..........
CheeseBurger

知識點分析：

一 .format 的用法

與{}一起使用，目的解決字符串變量的插入

python之格式化輸出format()函數使用總結_python format 打印列表保持對齊-CSDN博客

二、在print（）輸出語句中出現 end=‘ ’的語句，是什么意思呢？

簡單來說，如果沒有end=‘ ’，每次print語句都會自動換行，而有了這個語句，數據就不會自動換行，而是在輸出的數據后面加上空格（空格數取決于引號里面的空格數）。

引用文章

Python中end=' '的用法_python end用法-CSDN博客