1. General descriptionThis document is now perfect and accurate, anyway, try to refer to jscoverage documentation.1.1. IntroductionJscove is a tool used to display code coverage for JavaScript projects, which is inherited from Jscoverage and replaced with C++/spidermonkey Java/rhinoJscover the JavaScript, and then runs the post-insertion code in the browser, Jscover offers several options to perform:1, the simplest is the server mode, put the post-insertion code on the Web server2, another optio
Hive simple instructions for use, hive simple instructions for use
I usage:
Hive: Start hive
The command must end with a semicolon and tell hive to execute the command immediately, case insensitive.
Show tables; View tables
Desc tablename; view the columns in the table
Write SQL commands
Use udw;
Select user_id, action_id
From udw_ml_user_action
Where partition_date gt; = 20150410
Distribute b
SSDB basic instructions and usage, SSDB basic instructions
There are several reasons for using SSDB at that time. First, when designing the contest module, You need to query the Rank of the current competition multiple times because you click to query the Rank of the current competition, the amount of data queried each time is large. to efficiently obtain data, the SSDB database is used. The second aspect i
A to enter the 7-line command and Run Command e to modify the value from ~ 2000: F value, view the modified part
MoV ax, 2000; Save the number H to the Register ax
MoV SS, ax; Save the number 2000h in the register ax to the stack segment register SS
MoV sp, 10; Save the number 10 h to the stack address register sp
The initial stack top is, and the initial stack bottom is.
2. debug each line of Assembly commands in one step. After each command is debugged in one step, run the D command to view
stack is 2000:0010, mov sp, 10, after reading the information, we found that 10 Memory Spaces are reserved for the following registers, such as CS.
As for the interrupt mechanism written in the book, that is, every time debug uses t to execute the command, it will stop executing and display the status of each memory and the next operation. The above mov SS, 10 must have been executed, however, the next stack cannot completely restore the state of the memory in the previous step, so the value of
= 6462 H
Push [4]; SP = 00feh. The modified memory unit address is 2200: 00fe. The content is 3534 H.
Push [6]; SP = 00fch. The modified memory unit address is 2200: 00fc content is 3736 H.
Rewrite with the E command, and write with the command:
Result of one-step operation:
Data in the stack address:
(2) observe the experiment process shown in Figure 3.19 and analyze the cause ~ 2000: will the content in F change?
Figure 3.19 example of an experiment using debug
A: The use of
UE-9260 instructions for use 2, ue-9260 instructions for useGenerate an image
1. U-boot
Generate u-boot.bin files
(1) Makefile
Ifeq ($ (ARCH), arm)
CROSS_COMPILE =
Endif
Change
Ifeq ($ (ARCH), arm)
CROSS_COMPILE =/opt/crosstool/gcc-3.4.5-glibc-2.3.6/arm-softfloat-linux-gnu/bin/arm-softfloat-linux-gnu-
Endif
(2) makeV1.1.5
$ Make mrproper
$ Make at91sam9260ek_config
$ Make dep
$ Make
V1.3.4
$ Make distclea
Jsp learning notes: Action instructions, jsp learning notes instructions
Jsp: forward:
Statement 1:
Statement 2:
In statement 2,
Note: jsp: When forward specifies a page, jsp expressions can also be used, such:
Include:
Dynamically import a page in the same format as forward.
Differences from static import:
1. In servlet, static import integrates the two into a complete Servlet, while dynamic import
JSON. NET simple instructions, json.net simple instructions
NewtonJson is a commonly used json Parsing Library. Basically, this library is used in my project. It also has related libraries in Unity, which ensures the unification of multiple projects. At the same time, NewtonJson's serialization and deserialization interfaces are relatively simple and powerful. However, there are no pitfalls in use, so I wil
4.
1.
Experiment conclusion
2.
.
After two single-step operations in Experiment 2, we found that mov ax, 2000; MoV SS, ax; MoV sp, and 10 operations were run. The results returned when only the first three operations are written and run are the same.
Shows the data in the memory area when no operation is performed.
The data in the corresponding memory area after two single-step operations is the same as the original value.
Ax, the IP value is the same as the value in memo
Experimental tasksFirst, using Debug, use the E command and the A command to write instructions to memory in two waysMachine code Assembly InstructionsB8 4e mov ax,4e20hAdd ax,1416hBB XX mov bx,2000hD8 Add Ax,bxC3 mov Bx,axD8 Add Ax,bxB8 1a mov Ax,001ahBB-XX mov bx,0026hXX D8 Add Al,blXX DC Add AH,BLXX C7 Add Bh,alB4 XX mov ah,0XX D8 Add Al,bl9c Add al,9ch (1) Use the A command to write instructions to memo
When configuring PHP5 to use MySQL as a database, many people think that as long as the php.ini to add Extension=php_mysql.dll, the instructions can not understand why many articles are recommended to add EXTENSION=PHP_ Mysqli.dll of the order;
Just look at the official latest PHP manual, which says:
The following is a built-in list of extension libraries:
The following modifications are available in PHP 5 (up to 5.0.4). New built-in: DOM,LIBXML,IC
C language-related pre-compilation instructions and compilation instructionsI. Content Overview
This article mainly introduces the pre-compiled commands related to Conditional compilation in C language, including # define, # undef, # ifdef, # ifndef, # if, # elif, # else, # endif, and defined.Ii. Conditional compilation
Conditional compilation is a method for static code compilation based on the actual definition of macros (certain conditions. You can
Linux instructions curl instructionsCommand: curlIn linux, curl is a File Transfer tool that uses URL rules to work under the command line. It can be said that it is a powerful http command line tool. It supports file upload and download. It is a comprehensive transmission tool. However, traditionally, URLs are called download tools.Syntax: # curl [option] [url]Common parameters:-A/-- user-agent -B/-- cookie -C/-- cookie-jar -C/-- continue-at -D/-- du
Detailed instructions on the use of the mini-program digital scroll plug-in
Es6 syntax is used to write a small program plug-in-number scrolling;
:
Wxml page layout code:
Index. js calls NumberAnimate. js
// Pages/main/index. jsimport NumberAnimate from ".. /.. /utils/NumberAnimate "; Page ({data :{}, onLoad: function (options) {// parameters brought about by Page initialization options for Page Jump}, onReady: function () {}, onShow: function () {/
Experimental tasks(1) Using debug, the following program segments are written to the memory, executed one at a time, observing the changes in the contents of the relevant registers in the CPU after each instruction execution. Machine code Assembly Instructions B8 4e mov ax,4e20h Add ax,1416hBB XX mov bx,2000hD8 Add Ax,bxC3 mov Bx,axD8 Add Ax,bxB8 1a mov Ax,001ahBB-XX mov bx,0026hXX D8 Add Al,blXX DC Add BH,BLXX C7 Add Bh,alB4 XX mo
Experimental tasks(1)1. Write instructions to memory using the a command in the form of assembly instructionsExecute the Write command with the T command2. Write the machine code with the e commandThe result of execution is the same as the a command(2)Write instructions to a memory unit from 2000:0Ax=1, using 8 times jmp to figure out 2 of the 8-time Square(3)The ROM on the motherboard of the PC is written
Experimental resultsGo to DOS, run debugUse the R command to view and change the contents of the CPU register.Modify the contents of the register AX with the R commandModify the contents of CS and IP with the r commandUse the D command to view the contents of memory 1000:0See what's at 1000:9List the contents of the Debug preset addressView the contents of the 1000:0~1000:9 unitView content in the same physical address with three different segment addresses and offset addressesModify the content
$_server instructions for use in PHP, php_server instructions for use
PHP programming often need to use some of the server's information, special $_server detailed parameters to organize, convenient for later use.
$_server[' php_self ') #当前正在执行脚本的文件名, related to document root. $_server[' argv '] #传递给该脚本的参数. $_server[' argc '] #包含传递给程序的命令行参数的个数 (if run in command-line mode). $_server[' Gateway_interface ')
UE-9260 instructions for use 1, ue-9260 instructions for use
UE-9260 instructions
Serial number
Version
Date
Remarks
1
V0.1
2015-03-21
Original version; Author: xiaobin
2
3
4
5
Host environment
1. Burn write operation
EMR
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