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...

php面试题汇总（点我下载）

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 ...

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...

@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...

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...

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',...

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: ...

#!/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,...

修改/etc/ssh/sshd_config文件，找到 ClientAliveInterval 0和ClientAliveCountMax 3并将注释符号（"#"）去掉, 将ClientAliveInterval对应的0改成20, ClientAliveInterval指定了服务器端向客户端请求消息 的时间间隔, 默认是0, 不发送. ClientAliveInterval 60表示每...