Topic: Chp3 Lab: Analysis of Instruction Execution Pipelining Problem description: Using the following code fragment: LOOP: LW R1,0(R2) ; load R1 from address 0 + R2 ADDI R1,R1,#1; R1=R1 + 1 SW 0(R2),R1; store R1 at address 0 + R2 ADDI R2,R2,#4; R2=R2 + 4 SUB R4,R3,R2; R4=R3-R2 BNEZ R4,Loop ; branch to loop if […]
Tag: cut
selenium waits for element loading, element manipulation, js execution, switching tabs, logging into cnblogs (chrome), and drawer semi-automatic likes
selenium waits for elements to load Code operations are very fast ? \dashrightarrow ? Some tags have not been loaded yet ? \dashrightarrow ? Can’t find it even if I look for it ? \dashrightarrow ? will report an error Set wait: show wait, hermit wait # Search for a certain tag. If it cannot […]
[Mango] Use explain() to view the execution plan of mongodb query statement
Use explain() to view the execution plan of the mongodb query statement Similar to relational databases such as MySQL and Oracle, MongoDB calculates the optimal query plan for each query statement through the query optimizer, including selected indexes, query time, scanned records, number of scanned indexes, alternative execution plans, etc. information. This article introduces using […]
Will java try catch continue execution after exception?
1. There is a try-catch statement block, and throw is in the catch statement block. Then the subsequent code of the line of code that causes the exception (error report) in the try statement block will not be executed, and the code after the catch statement block will not be executed (in case of Except […]
WEB Security (Command Execution) Note 2
Foreword A command execution vulnerability is a security vulnerability that allows an attacker to execute malicious system commands. This vulnerability typically occurs when an application or system does not properly validate user input, allowing the user to execute system commands by entering specific data. The occurrence of vulnerabilities is usually related to the following factors: […]
pagehelper/PageInterceptor causes MyBatis to execute SQL problems
question Colleague J met a requirement, which caused an error to be reported in an interface that had nothing to do with the requirement. The error message was due to a SQL syntax problem. Normal SQL should look like this: select * from table where condition order by field limit from, size But now it […]
Linux-Vim shortcut keys
Vim key arrangement space bar Enter represents the key combination of and f Write, save, exit :q[uit] “Exit :q! ” Force quit :w[rite] ” save :w! “Force saving. Whether the save can be successful depends on the user’s permissions on the file. :w ! sudo tee % ” If you don’t have permission to save, […]
POI getRuns() non-consecutive placeholder processing
The business needs to process WORD and replace placeholders. Using POI, I found that the placeholders obtained by getRuns() are not necessarily consecutive. Du Niang wrote a solution herself without solving it. The function of the code is to judge the placeholder “${AAA|BBB}” in paragraphs and tables by a Boolean value and replace it with […]
Apple Final Cut Pro 10.7 – Professional post-production (video editing)
Apple Final Cut Pro 10.7 – Professional post-production (video editing) Final Cut Pro 10.7 + Compressor 4 + Motion 5 (Universal) Please visit the original link: https://sysin.org/blog/apple-final-cut-pro/ to view the latest version. Original work, please keep the source when reprinting. Author homepage: sysin.org Powerful new features in Final Cut Pro take Mac and iPad video […]
Python+requests+unittest execution interface automation test details
This article mainly introduces the details of automated testing of the Python + requests + unittest execution interface. The article provides a detailed introduction around the topic, which has certain reference value. Friends in need can refer to it. 1. Install requests, xlrd, json, unittest libraries Pip command installation: pip install requests pip install xlrd […]