<a href="http://blog.chinaunix.net/u2/84280/showart_1793926.html">http://blog.chinaunix.net/u2/84280/showart_1793926.html</a>
<a href="http://www.ibm.com/developerworks/cn/linux/l-pyint/index1.html">http://www.ibm.com/developerworks/cn/linux/l-pyint/index1.html</a>
数据结构
列表
a = ['1', 'cnbird', 'fuckyou']
取得值a[0]
元组
('wolf', 'elephant', 'penguin')
字典
{
'key' : 'value',
'key1': 'value'
}
键值的关系
序列 切片
shoplist[1:3]返回从位置1开始,包括位置2,但是停止在位置3的一个序列切片,因此返回一个含有两个项目的切片。
startwith方法是用来测试字符串是否以给定字符串开始。<code>in</code>操作符用来检验一个给定字符串是否为另一个字符串的一部分。
<code>find</code>方法用来找出给定字符串在另一个字符串中的位置,或者返回-1以表示找不到子字符串。<code>str</code>类也有以一个作为分隔符的字符串<code>join</code>序列的项目的整洁的方法,它返回一个生成的大字符串。
时间函数:
time.strftime(format[, t])
Directive
Meaning
Notes
%a
Locale’s abbreviated weekday name.
%A
Locale’s full weekday name.
%b
Locale’s abbreviated month name.
%B
Locale’s full month name.
%c
Locale’s appropriate date and time representation.
%d
Day of the month as a decimal number [01,31].
%H
Hour (24-hour clock) as a decimal number [00,23].
%I
Hour (12-hour clock) as a decimal number [01,12].
%j
Day of the year as a decimal number [001,366].
%m
Month as a decimal number [01,12].
%M
Minute as a decimal number [00,59].
%p
Locale’s equivalent of either AM or PM.
(1)
%S
Second as a decimal number [00,61].
(2)
%U
Week number of the year (Sunday as the first day of the week) as a decimal number [00,53]. All days in a new year preceding the first Sunday are considered to be in week 0.
(3)
%w
Weekday as a decimal number [0(Sunday),6].
%W
Week number of the year (Monday as the first day of the week) as a decimal number [00,53]. All days in a new year preceding the first Monday are considered to be in week 0.
%x
Locale’s appropriate date representation.
%X
Locale’s appropriate time representation.
%y
Year without century as a decimal number [00,99].
%Y
Year with century as a decimal number.
%Z
Time zone name (no characters if no time zone exists).
%%
A literal '%' character.
<a href="http://docs.python.org/library/time.html">http://docs.python.org/library/time.html</a>
Python pty
使用平台IRIX,Linux
冒充终端模块
此模块包括了三个函数
Pty模块定义操控冒充终端概念的具体实现,开启另外一个进程同时对于来自终端控制台进行写和读。
有下面三个函数
pty.fork()
fork作为伪终端连接到子进程的控制终端.返回值是(pid, fd).注意这个子进程的pid如果是0那么fd失效。父进程返回了子进程的pid值,同时fd是一个连接到子进程控制终端的文件描述符。
pty.openpty()
使用pty.openpty开一个新的伪终端。返回值是相同的文件描述符(master, slave)
pty.spawn(argv[,master_read[,stdin_read]])
产生一个新的进程同时作为当前进程标准IO连接到它的控制终端。这个经常被用作必须要求读控制终端的程序。例如SSH等
master_read和stdin_read函数是从文件描述符中读,当它被调用的时候默认是尝试读取1024字节。