A macro resembles a function in C, executes after the specified parameter is passed in, and inside the macro can contain the data step program and the conditional operation symbol.A macro variable is just a small variable 、、、、 (by the same is a great role)1: Basic syntax for macrosHow do I create a simple macro and use
Tags: style blog http io ar color OS using SP1: Macro definition in program runCall Routines -enable you-transfer information between an executing DATA step and the Macro Proces Sor.You can use the symput routine to create a macro variable, and to assign to, variable any value, is Availa ble in the DATA step.Symput routine to create a
The use of computer friends more and more, computer enthusiasts novice friends encounter computer problems are strange, in fact, most of the problem is simply a problem, but because the novice friend did not contact, so the most basic computer skills may not be, recently 2 consecutive netizens asked edit notebook keypad how to open? or notebook keypad how to shut down and so on, in fact, these operations in
The use of computer friends more and more, computer enthusiasts novice friends encounter computer problems are strange, in fact, most of the problem is simply a problem, but because the novice friend did not contact, so the most basic computer skills may not be, recently 2 consecutive netizens asked edit notebook keypad how to open? or notebook keypad how to shut down and so on, in fact, these operations in
v1--Single-parameter macros#define DRV_DEBUG 1#if DRV_DEBUG #define DRV_PRINT(x) printf(x)#else #define DRV_PRINT(x) #endifThis version of Drv_print (x) can only output a single variable--pure stringvoid foo(){ DRV_PRINT("Driver Initialize Success!");}Change the Drv_debug macro definition when you do not need to print debug information#define DRV_DEBUG 0Of course, you can define it directly.#define DRV_PRINT printfBut if the
How to open a notebook keypad? Notebook Digital Keypad Switching
1 actually need to use the digital keypad is not much, plus the top of the notebook keyboard already has a number of keys, but many friends are accustomed to the previous large keyboard digital keypad, so also want to use in the notebook, we know that th
As we all know, notebook because of the need to take into account the portability, in the keyboard design up and down a lot of time, relative to the ordinary keyboard change is the most of the small keyboard removal. The manufacturer also takes into account the function of the keypad, also designed the function of the keypad for the notebook, just let him with our main keyboard area is integrated, below let
When using a full-size keyboard, there is a row of keypad on the right side of the keyboard
However, the numeric key value of this keypad is different from that of the ordinary keyboard.
The standard numeric key value in the ANSI code is $30... $39, and the keypad key value is $60... $69
This problem arises. When we set the limit cut of action in the Attribute E
In general, we can see the notebook keyboard near the right Entel key near the keyboard is generally marked with letters and numbers, these are the combination of numeric keys and letters, which are displayed by default, but can be switched to the numeric keypad by pressing the NUM LK key at the top of the notebook keyboard. Press the NUM LK key again to toggle the letter key mode. The following figure:
Many novice friends in the use of notebo
How to turn on the keypad:
We all know that the notebook keyboard is also a digital keypad, but because the editing of the keyboard area is limited, only the numeric keypad and letter keys integrated together. In general, we can see the notebook keyboard near the right Entel key near the keyboard is generally marked with letters and numbers, these are the combin
Solution to NumLock failure in Windows 7 system keypad
The NumLock key on the keypad in Win7 is often used. It is mainly used to switch the numeric switch on the keypad, which brings a lot of convenience to users. If one day you find that the NumLock key is invalid, you cannot enable it no matter how you click the keypad
When we use the desktop, we may like to use the right-hand keypad to enter numbers, because it is independent, not with its key to confuse, and on the right hand side, use is also convenient, but the notebook is not the same, it does not have a separate keypad, then how to open the notebook keypad?
Most notebooks come with a
Laptops are easy to carry and do a full article on the keyboard. Compared with the traditional desktop keyboard, the notebook keyboard eliminates the keypad, the keypad also plays a certain function. Some manufacturers in the design of the notebook keyboard still retains the function of the keypad, I will teach you how to open the following.
Function description
How JavaScript prevents the keypad from entering numbers:Do not know why to prohibit the keypad input numbers, but there is a need, but it is also very simple, is simply through the key code to determine whether the keypad is pressed, the following directly see the code, code examples are as follows:functionIsnum ()//determine the
The project in Vue, based on Vux-ui development, is a common requirement:1, the amount of input box 2, pop-up number keypad 3, only support input two decimal places, limit the maximum 11 digits, do not allow 0 startFirst, the first thought is the vux-ui in the development of Type=number. --Not OKVux in the document and code description, Type=number does not support MaxLength, will be error, and there is no regular replacement of the processing or hook
This is a lot of novice friends will often make a low-level error, is generally a desktop keyboard, leading to keyboard numeric keypad (0123456789*+, etc.) button failure Most of the reason is that everyone turned off the digital keypad, we can see if the NumLock key is open (generally for the keyboard on the right side of a group of light) Corresponding to a number of keyboard lights (that is, NumLock), pr
Keypad issuesXshell 6 on the use of VI, when the numlock on the keypad when the number keys and can not enter a number, but a letter and then a newline (in fact, the command mode corresponding to the next key). WorkaroundOption Terminal->features, find disable application keypad mode, select on it.The Xshell in Xmanager 4 also has a small keyboard problem resolut
The correct way to open your laptop keypad. Notebook computer keyboard generally have FN function keys, we press fn key with F11 above the NUMLK key, may be other brand notebook computer, this key no longer F11, like Lenovo's machine is the F8 key. To small series Acer, after pressing, will appear as shown in the following image, proof that the keypad is turned on.
Press again, that is, turn off the
When using Vi/vim on Putty or Xshell, press the number key on the keypad when you open NumLock and you cannot enter a number, but instead appear a letter and then wrap it (in fact, the key that corresponds to the top or bottom of the command mode).Workaround:Putty: Option Terminal->features, find disable application keypad mode, choose on it.Xshell: The terminal Type in Properties->terminal in the connected
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