used lv1

After the RDP function is added to the stm32f10x series of the cm3 core, RDP cannot be removed from the unsecured chip of the segger or the CMD of the unlock stm32, And the unlock stm32 prompts that the model cannot be recognized. After trying many methods, you still cannot remove RDP. It is estimated that the model is relatively new and segger is not fully supported yet. The segger used is the latest official release and beta versions v4.65d and v4.6

Although the account has been used for more than two years, it has never been used ., Account has never been used for 2 years Newbie C # developed a company that has primarily developed mvc using a similar internal system. The customer places an order to record the review process and then goes to the lending system. Other system functions are similar. Simple th

I don't know if there are any small partners, like me, when I want to add a small icon or something inside an element,Add your own tags directly to the HTML document, or something else. or append an element to the element with JavaScript.For example, we add the b element to the following Div ;$ (function) {　　$("div").append("}results: and CSS pseudo-class:before;Div:before{content: ""; width:5px;height:5px;left:169px;top:2px;}Note: Content: is an attribute with a value of information. (Can b

Label:One record of a single table must correspond to only one record of another table, and vice versa. Student Table: Name, gender, age, height, weight, place of origin, home address, emergency contact name, gender, age, height, body weight is a common data, but the origin, address and contact person is not commonly used data if every query is to query all data, Infrequently used data will affect efficien

Design and implement a data structure for Least recently Used (LRU) cache. It should support the following operations: get and set .get(key)-Get The value ('ll always be positive) of the key if the key exists in the cache, otherwise return-1.set(key, value)-Set or insert the value if the key is not already present. When the cache is reached its capacity, it should invalidate the least recently used item bef

+shift+y turns the currently selected text to lowercaseCtrl+shift+f formatting of the current codeCtrl+shift+p position to the match (for example {}) (after locating from the front, the cursor is in the match, back to front, or vice versa)The following shortcut keys are commonly used in refactoring, I like and commonly used to tidy up (note: General refactoring of the shortcut keys are alt+shift beginning o

Commonly used query operators and commonly used Linq Operators A total of more than 50 query operators are included in Linq, which are commonly used to differentiate between five types. Some of these five types are frequently used in project queries. However, the naming of the linq operator is very standard. It can be

I never quite understand why memcache is used when smarty is used ~~~~ It is said that the combination of smarty and memcache is a good combination of optimization, but I don't understand why memcache is used when smarty is used ~ Because smarty does not have A page cache. for example, if there is A page A, I set it to

I have never quite understood why I used smarty and memcache. It also said that smarty + memcache is a good combination of optimization, but I don't understand why I used memcache when I used smarty ~ Because smarty does not have A page cache. for example, if there is A page A, I set it to be cached for 10 minutes, so it only needs to perform A logical operation

The capacitor around 10 PF is used to filter out high-frequency interference signals, and the capacitor around 0.1uf is used to filter out low-frequency ripple interference. Can play the role of regulator The specific capacity of the filter capacitor depends on the main operating frequency on your PCB and the harmonic that may affect the system.Frequency. You can check the capacitor information of the rele

Under what circumstances should adLockOptimistic be used and under what circumstances should adLockPessimistic be used... Under what circumstances should adLockOptimistic be used, adLockPessimistic should be used, adOpenKeyset should be used, adOpenDynamic--should b

In some cases, classes and functions can be used directly. In addition, in some php frameworks, methods in many classes do not need to depend on instances of this class. these methods are tool-based methods and do not have any attributes (variables) in these classes ), in this case, what is the significance of using the class... in some cases, classes and functions can be used directly. In addition, in some

Use PostSharp In the. NET project, use MemoryCache for cache processing (forwarding), and the principle of memorycache In the previous article. the use of PostSharp in the NET project to implement AOP Aspect-Oriented Programming processing introduces the use of the PostSharp framework. Using PostSharp can bring me a lot of convenience and advantages, reduce code redundancy and improve readability, in addition, it can implement more elegant processing of common business scenarios such as logs, ex

How does win10 delete or cancel recently used files? How does win10 delete or cancel recently used files? When the win10 system uses the file resource manager to open files on the computer, common files are displayed, and these commonly used files are very likely to expose the user's privacy, so many of my friends are disgusted with this function. How can I clea

I never quite understand why memcache is used when smarty is used ~~~~ It is said that smarty nbsp; + nbsp; memcache is a good combination of optimization, but I don't understand why memcache is used when smarty is used ~ Because smarty does not have a page cache, for example, I have never understood why I still need

The constant used to learn php at the front end and the constant used to learn php* Directory [1] definition constant [2] constant detection [3] system constant [4] before magic constant Constants do not exist in javascript. in php, they are important content that is tied with variables. Constants are similar to variables, but once defined, constants cannot be changed or undefined. Constants are mainly

In general, it is okay to use any language for development. It mainly depends on the language you know. If you want to use PHP or. NET for the mall system, we recommend that you use PHP or. NET. For PHP development, ZendStudio or general notepad can be used. If ZendStudio is not used, some powerful notepad tools can be used directly. In general, it is okay to us

Reprinted from: [Hyddd (http://www.cnblogs.com/hyddd/)]to summarize, Get is a request to send data to the server and post is a request to submit data to the server, in the form (form), Method defaults to "get", in essence, get and post just send mechanism is different, not one to take a hair! Talking about the difference between get and post in HTTPHTTP defines different ways to interact with the server, with 4 basic methods, namely get,post,put,delete. URL full name is a r

In our ACCP course, we learned the C # and Java languages. C # language we have learned how to develop Windows applications (visual applications) and Web applications (mainly ASP. NET. Java language we mainly learn Web application (JSP) development. Many students cannot understand why ASP. NET is mainly used to develop small and medium applications, while JSP is used to develop large applications. Let's sta

Commonly used tools in development and frequently used tools in development Name Function Sublime Who knows my favorites? Xmind Mind Map tool, which can be used to analyze complex logic Navicat/dbforge I am mainly used for mysql management. The latter can be