Python笔记
来自Jack's Lab
（版本间的差异）
(→Strings) |
(→Strings) |
||
| 第33行： | 第33行： | ||
#!/usr/bin/python | #!/usr/bin/python | ||
| − | + | str_1 = 'Jack Tan' | |
| − | + | str_2 = "Ga Xiao Duo" | |
| − | + | str_3 = '''This is a multi-line string. first line. | |
second line''' | second line''' | ||
| − | if | + | if str_1.startswith('Ja'): |
| − | print("Yes, | + | print("Yes, str_1 start with 'Ja'") |
| − | if 'a' in | + | if 'a' in str_1: |
| − | print('Yes, | + | print('Yes, str_1 contains the string "a"') |
| − | if | + | if str_1.find('ac') != -1: |
| − | print('Yes, | + | print('Yes, str_1 contains the string "ac"') |
deli = '_*_' | deli = '_*_' | ||
2017年4月16日 (日) 19:52的版本
目录 |
1 Quick Start
Install python2.7 from https://www.python.org/downloads/
Install pip:
$ curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py $ sudo python get-pip.py
2 Basics
2.1 Numbers
Python 2.7.9 (default, Mar 1 2015, 12:57:24) >>> a = 3.23 >>> b = 4 >>> c = 52.3E-4 >>> print a, b, c 3.23 4 0.00523
2.2 Strings
#!/usr/bin/python
str_1 = 'Jack Tan'
str_2 = "Ga Xiao Duo"
str_3 = '''This is a multi-line string. first line.
second line'''
if str_1.startswith('Ja'):
print("Yes, str_1 start with 'Ja'")
if 'a' in str_1:
print('Yes, str_1 contains the string "a"')
if str_1.find('ac') != -1:
print('Yes, str_1 contains the string "ac"')
deli = '_*_'
mylist = ['Brazil', 'Russia', 'India', 'China']
print(deli.join(mylist))
Output:
Yes, name start with 'Ja' Yes, name contains the string "a" Yes, name contains the string "ac" Brazil_*_Russia_*_India_*_China
3 Operators
4 Control Flow
5 Functions
6 Data Structures
7 Exceptions
8 Modules
9 Object Oriented
10 Resource
- Online Python: http://www.compileonline.com/execute_python_online.php
- Python Quick Start: http://www.tutorialspoint.com/python/python_lists.htm
