string.format(*args)
替換字串中的變量與格式化輸出行為
>, >=, ==, =<, <, !=
not, and, or
(/ O_O)/ 記得等於是 ==
if ...: ...
(/ O_O)/ 別忘了縮排~~~
[...] # list(...)
{...} # dict()
for i in ...: ...
in後面必須接sequence
while ...: ...
重複執行直到不滿足判斷式