【codecademy笔记1】

都是很基础的

简单记录一下

Date:0303

1.Write a comment for muti-line could usethis:

$

“””sdfaf

Fasdf

Sadfg”””

2.exponentiation

100 = 10**2

$ print 10**2

>100

3.Modulo(%)

type 3 % 2, it will return 1, because 2 goes into 3 

4.可以直接定位字符串

Col = “sadfas”

$print Col[1]

>a

5.大小写转换

lower(),upper()

$”SASFdsfa”.lower()

Asd = ”SASFdsfa”

Asd.lower()

6.非字符串转化成字符串

The str() method turns non-strings into strings! 

$print str(2)

>2