Incrementing a global variable is 2 times slow than a local var.
递增一个全局变量要比递增一个局部变量慢2倍。
Just declaring a global variable without using it in a function also slows things down (by about the same amount as incrementing a local var).
仅定义一个局部变量而没在函数中调用它，同样会减慢速度(其程度相当于递增一个局部变量)。
Storing references to global variables inside a function is a problem, as a global var inside a function seems to be nothing but a local var containing a reference to the global.
保存引用一个全局变量在函数里面是一个问题，因为一个函数变量在函数看不见但是一个局域变量包含一个引用全局。
Also as the name says, implicitly typed local variable, you cannot use var for field declaration or constant variables, therefore following declarations will both produce a compiler error.
故名思意，“隐式类型局部变量”将无法用于域变量或常量的声明中，否则将导致编译错误。
Just declaring a global variable without using it in a function also slows things down (by about the same amount as incrementing a local var). PHP probably does a check to see if the global exists.
仅定义一个局部变量而没在函数中调用它，同样会减慢速度(其程度相当于递增一个局部变量)。PHP大概会检查看是否存在全局变量。
Just declaring a global variable without using it in a function also slows things down (by about the same amount as incrementing a local var). PHP probably does a check to see if the global exists.
在一个函数里如果只声明一个全局变量而没在函数中调用它，同样会减慢速度(其程度相当于递增一个局部变量)。PHP很有可能会检查看是否存在全局变量。
You use the function keyword to denote the start of a function and the var keyword to declare local (as opposed to global) variables, but you do not include the type of the variable being declared.
您可以使用function关键字开始函数的声明，使用var关键字来声明局部变量(这与全局变量不同)，但是不用包括正在声明的变量的类型。
On a Linux server, edit the /var/yp/securenets and /etc/ypserv.conf files to match your local networks.
在Linux服务器上，编辑 /var/yp/securenets和 /etc/ypserv.conf文件，以与本地网络的情况匹配。
This changes the thread local value of the var.
这改变了var的线程本地值。
Using the var construct it is possible to create state local to a particular screen.
使用var结构我们可以创建嵌入在特定屏幕中的状态。
A variable structure controller for Static var Compensator (SVC) which can improve power Angle stability of power system and local voltage characteristics of SVC is proposed.
本文提出了能同时改善电力系统功角稳定和装设点电压动态特性的用于静止无功补偿器(svc)的变结构控制器设计方法。
In this paper a method for optimizing VAR synthetical benefits in local power systems is presented.
本文提出一种地区电力系统无功综合效益优化方法。
This paper introduces the control principle, parameters selection, calculation and energy saving character of the low voltage TSC local dynamic var compensator.
介绍安钢低压就地TSC动态无功补偿的控制原理、参数选择、数据设定及节能分析；
This paper introduces the control principle, parameters selection, calculation and energy saving character of the low voltage TSC local dynamic var compensator.
介绍安钢低压就地TSC动态无功补偿的控制原理、参数选择、数据设定及节能分析；
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