directory (for example, c: \ batch) on the hard disk, and then put all the batch files you have compiled into this directory, in this way, you only need to set C: \ batch in the path, and you can run all your batch processing programs at any location.
Fourth, in DOS and Win9x/me systems, C: autoexec under the root directory. bat batch files are automatically run batch files. Each time the system starts, the files are automatically run. You can put th
batch processing capability depends on the commands you use.Third, each written batch processing file is equivalent to a DOS external command. You can put the directory in your DOS search path) so that it can run in any location. A good habit is to create a bat or batch directory (for example, C: \ BATCH) on the hard disk, and then put all the batch files you have compiled into this directory, in this way, you only need to set c: \ batch in the path, and you can run all your batch processing pr
a bat or batch directory (for example, c: \ batch) on the hard disk, and then put all the batch files you have compiled into this directory, in this way, you only need to set C: \ batch in the path, and you can run all your batch processing programs at any location.
Fourth, in DOS and Win9x/me systems, C: autoexec under the root directory. bat batch files are automatically run batch files. Each time the system starts, the files are automatically ru
a bat or batch directory (for example, c: \ batch) on the hard disk, and then put all the batch files you have compiled into this directory, in this way, you only need to set C: \ batch in the path, and you can run all your batch processing programs at any location.
Fourth, in DOS and Win9x/me systems, C: autoexec under the root directory. bat batch files are automatically run batch files. Each time the system starts, the files are automatically run.
process control statements (goto, you can also use the for statement to execute a command cyclically in batches. Of course, the programming capability of batch processing files is very limited than that of C language and other programming statements, and it is also very nonstandard. The program statements for batch processing are several DOS commands (including internal commands and external commands). The batch processing capability depends on the commands you use.
Third, each written batch pr
follows:Macro name Run conditionAutoExec When you start WordAutoNew When you create a new documentAutoOpen when you open an existing documentAutoClose when you close a documentAutoExit when you quit Word
Second, create macrosfrom the above 5 automatic macros, we know that the AutoExec macro will run automatically when you start Word, so long as we give the macro the ability to automatically open the last edited document, we can make word remembe
files into that directory.Fourth Step: Configure the EnvironmentConfiguration environment is mainly for the convenience of later useMount the virtual C: \ disk to "E:\Program Files (x86) \dosbox-0.74\asm", equivalent to the current ASM directory is the root directory of the virtual C: \.Set the path E:\Program Files (x86) \dosbox-0.74\asm so that we can use commands such as Debug,edit.First: Open the file
I see a lot of students with Win 7/win 8 to learn the assembly, now a lot of people's memory upgrades are used 64-bit system, but 64-bit W7 does not have their own debug and MASM. 1. First download the DOSBox, (with the address below) its role is to let you in 64 bit under the use of 32, 16-bit software. If you do not use DOSBox, a Program incompatibility dialog box appears. After installing
both content, if only want to modify the content of IP, can be used "jmp a legitimate register", such as jmp ax or jmp bx.Finally, pay attention to the CPU's working process:① reads the instruction from the memory unit pointed to by the CS:IP, and reads the instruction into the instruction buffer;②ip refers to a downward instruction;③ executes the command. (Go to ① repeat step).Use of debug in DOS:/* for debug in Win101. One method is to select the command line mode by pressing F8 enter mode wh
". Each program segment finally jumps the program to the end label with "Goto end", and the program displays "good bye". The batch processing is completed.
4. The for loop command will execute the same command multiple times as long as the conditions are met.
Syntax:
Execute a specific command on each file in a group of files.
For % variable in (SET) do command [command-parameters]
% Variable specifies a single letter replaceable parameter.
(SET) specifies one or more files. Wildcard characters
() can be embedded into multiple strings. Obviously, for can be regarded as a traversal loop. of course, in the command line environment of the NT/2000/XP/2003 series, for is given more features so that it can analyze the command output or strings in the file, many switches are also used to extend the file replacement function.
Batch Processing example1. If-exist1) First, use NotePad to create a test1.bat batch file in C:/. The content of the file is as follows:@ Echo off if exist/
Doskey.com/insertLH Ctmouse. ExeSET temp=d:\tempSET tmp=d:\temp* = = =====AUTOEXEC. BAT is the automatic running batch file of DOS system, which is interpreted and executed by Command.com when it is started;And in the Win9x environment, not only increased support for Dosstart. BAT, Winstart. Many other auto-running batch files, such as BAT, have also been added to Autoexec.bat. Dos. W40. Bak. Old. PWS and many other variants to adapt to complex envir
extensions in the current directory.
It should be noted that when the string in () is not a single or multiple file names, it will simply be replaced as a string. This feature is added () can be embedded into multiple strings. Obviously, for can be regarded as a traversal loop. of course, in the command line environment of the NT/2000/XP/2003 series, for is given more features so that it can analyze the command output or strings in the file, many switches are also used to extend the file replac
depends on the commands you use.
Third, each written batch processing file is equivalent to a DoS external command. You can put the directory in your dos search path) so that it can run in any location. A good habit is to create a bat or batch directory (such as C:/batch) on the hard disk, and then put all the batch files you have written into this directory, in this way, you only need to set C:/batch in the path, and you can run all your batch processing programs at any location.
Fourth, in DO
:/. The content of the file is as follows:
@ Echo off
If exist/autoexec. bat type/autoexec. bat
If not exist/autoexec. Bat echo/autoexec. bat does not exist
Then run it:
C:/> test1.bat
If the C:/file contains the autoexec. BAT file, its content will be displayed. If it does
, each increment is 1. the position of the 5 behind the end indicates the size of the end. this statement increases from 1 (start) to 5 (end. what is the purpose of this? In fact, I think this thing is still very useful. for the simplest example, we want to repeat the "I am the best" Statement and repeat it 10 times. the for command is as follows: For/L % E in (, 10) Do echo "I am the best, CMD will repeat "I am the best" 10 times.
Batch Processing example
1. If-exist
1)
First, use NotePad to cr
Bat Batch File Syntax (2)
Batch Processing example:
1. If-exist
1) First, use NotePad to create a test1.bat batch file in C:/. The content of the file is as follows:@ Echo offIf exist/autoexec. bat type/autoexec. batIf not exist/autoexec. Bat echo/autoexec. bat does not exist
Then run it:C:/> test1.bat
If the C:/file c
used.Command specifies the Command executed on each file.Command-parameters specifies a parameter or command line switch for a specific command.For example, a batch file contains one row:For % C in (*. bat *. txt) do type % CThe command line displays the contents of all files with the bat and TXT extensions in the current directory. Batch Processing example1. If-exist1) First, use NotePad to create a test1.bat batch file in C:/. The content of the file is as follows:@ Echo offIf exist/
, whether to automatically create a file)File Name: it is recommended to write the complete path file name.Io mode: it can be set to forreading (= 1), forwrting (= 2), or forappending (= 8 ).If it is set to forreading, The opened file is read-only;If it is set to forwriting, The opened file is writable, and the content of the original file is cleared;If it is set to forappending, The opened file is writable, but the content of the original file is not cleared, and data is written from the end of
particular command.
For example, there is one row in a batch file:
For%%c in (*.bat *.txt) do type%%c
The command line displays the contents of all files with bat and txt extensions under the current directory.
Batch processing sample
1. If-exist
1)
First use Notepad to create a test1.bat batch file in C:\, which reads as follows:
@echo off
IF EXIST \autoexec. BAT TYPE \autoexec. BAT
IF not EXIST \
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.