python源代码下载：点击下载本书源码
"一
from ctypes import *
"二
CPU 一般 有8个寄存器 .
EAX – > 累加器，一般用于执行加减乘除或比较的运算都会经过它，还有一些特殊的指令如乘法除法。函数的返回值将会在此记录
EDX – >...
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点击下载字体文件
<?php
//PHP验证码
class Code{
//图像资源
private $img;
//宽度
private $width;
//高度
private $height;
//背景颜色
private $bgColor;
//字体大小
private $fontSize;
//验证码长度
pr...
5-18 4,574 views
点击下载字体文件
<?php
//PHP验证码
class Code{
//图像资源
private $img;
//宽度
private $width;
//高度
private $height...
python3.3.2中的关键字如下：
The following identifiers are used as reserved words, or keywords of the language, and cannot be used as ordinary identifiers. They must be spelled exactly as written here:
False class finally is ...
5-15 3,651 views
python3.3.2中的关键字如下：
The following identifiers are used as reserved words, or keywords of the language, and cannot be used as ordinary ident...
mysql启动 提示
[root@localhost var]# Starting mysqld daemon with databases from /var/lib/mysql
STOPPING server from pid file /var/run/mysqld/mysqld.pid
120516 15:23:19 mysqld ended
/var/log/mysqld.log信息为
/usr/local/mysql//libexec/mysqld: C...
5-14 5,624 views
mysql启动 提示
[root@localhost var]# Starting mysqld daemon with databases from /var/lib/mysql
STOPPING server from pid file /var/run/mysqld/mysq...
@1-> 命令行下运行 wget https://bootstrap.pypa.io/get-pip.py ，没有wget的请先去安装wget
@2-> ~ python get-pip.py
@3-> ~ pip -V ，出现下图，证明安装成功！
碰到问题 zipimport.ZipImportError: can’t decompress data; zlib not avail...
5-13 9,831 views
@1-> 命令行下运行 wget https://bootstrap.pypa.io/get-pip.py ，没有wget的请先去安装wget
@2-> ~ python get-pip.py
@3-> ~ pip -V ，出现...
一
首先进入网址：https://packaging.python.org/tutorials/installing-packages/#installing-from-pypi
@1–选择 get-pip
@2–选择get-pip，右键另存为
@3–把下载好的 get-pip.py 文件放在C盘， 运行命令python c:/get-pip.py ,等一会就安装...
5-13 4,094 views
一
首先进入网址：https://packaging.python.org/tutorials/installing-packages/#installing-from-pypi
@1–选择 get-pip
@2–选择get-pip，...
首字母大写(map函数)
#!/usr/bin/env python
# -*- coding: utf-8 -*-
def change(str):
return {'a':'A','b':'B','c':'C','d':'D','e':'E','f':'F','g':'G','h':'H','i':'I','j':'J','k':'K','l':'L','m':'M','n':'N','o':'O','p':'P','r':'R','s':'S','t':'T',...
5-12 3,607 views
首字母大写(map函数)
#!/usr/bin/env python
# -*- coding: utf-8 -*-
def change(str):
return {'a':'A','b':'B','c':'C','d':'D','e':'E','f':'F','g':...
import types
aaa = 0
print type(aaa)
if type(aaa) is types.IntType:
print "the type of aaa is int"
if isinstance(aaa,int):
print "the type of aaa is int"
bbb = 'hello'
print type(bbb)
if type(bbb) is types.StringType: ...
5-12 5,259 views
import types
aaa = 0
print type(aaa)
if type(aaa) is types.IntType:
print "the type of aaa is int"
if isinstance(aaa,int):
pri...
#!/usr/bin/env python
# -*- coding: utf-8 -*-
def str2int(s):
def fn(x,y):
return x * 10 + y
def char2num(s):
return {'0': 0, '1': 1, '2': 2, '3': 3, '4': 4, '5': 5, '6': 6, '7': 7, '8': 8, '9': 9}[s]
return reduce(fn,...
5-12 4,322 views
#!/usr/bin/env python
# -*- coding: utf-8 -*-
def str2int(s):
def fn(x,y):
return x * 10 + y
def char2num(s):
return {'0':...