调用函数 Python的内置函数很多,可至其管网查看文档:https://docs.python.org/2/library/functions.html 在知道函数名的情况下也可以在命令行用help()查看帮助信息。例如Python中求绝对值的函数abs,可通过hel...
分类:
编程语言 时间:
2015-03-19 06:44:59
阅读次数:
158
6. ModulesIf you quit from the Python interpreter and enter it again, the definitions you have made (functions and variables) are lost. Therefore, if ...
分类:
编程语言 时间:
2015-03-19 00:40:15
阅读次数:
287
A typical install of OS X won't create a .bash_profile for you. When you want to run functions from your command line, this is a must-have.Start up Te...
分类:
系统相关 时间:
2015-03-18 15:30:52
阅读次数:
190
匿名函数(Anonymous functions),也叫闭包函数(closures),允许 临时创建一个没有指定名称的函数。最经常用作回调函数(callback)参数的值。当然,也有其它应用的情况。结合array_walk和匿名函数来实现一个结算功能array_walk() 函数对数组中的每个元素应...
分类:
Web程序 时间:
2015-03-17 19:47:01
阅读次数:
174
http://www.cnblogs.com/yanlingyin/archive/2012/04/23/2466141.htmlLinux下对文件操作有两种方式:系统调用(system call)和库函数调用(Library functions)。可以参考《Linux程序设计》(英文原版为《Beg...
分类:
系统相关 时间:
2015-03-16 16:03:31
阅读次数:
193
Introduction(介绍)
Block objects are a C-level syntactic and runtime feature. They are similar to standard C functions, but in addition to executable code they may also contain variable bindings to...
分类:
移动开发 时间:
2015-03-16 13:00:45
阅读次数:
235
下面的代码演示的是让小车直线前进的arduino程序:/*the following codes functions to make the car run forward repeatedly*/int pin1=8;int pin2=9;int speedpin1=11;int pin3=6;i...
分类:
其他好文 时间:
2015-03-15 21:06:35
阅读次数:
182
主要写了使用 JVMTI 中需要的几个关键问题,包括 jni functions 的使用,线程安全,调试技巧。...
分类:
其他好文 时间:
2015-03-15 12:25:59
阅读次数:
170
Functions are central in Go. We'll learn about functions with a few different examplespackage mainimport ( "fmt")func plus(a int, b int) int { r...
分类:
其他好文 时间:
2015-03-14 18:29:44
阅读次数:
99
Go supports anonymous functions, which can form closures. Anonymous functions are useful when you want to define a function inline without having to n...
分类:
其他好文 时间:
2015-03-14 18:28:43
阅读次数:
107