Found a total of 10000 related content
Active use and passive use like Java
Article Introduction：Other ways of using Java classes can be regarded as passive use and will not cause the initialization of the class.
2017-01-17
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1649
First use of SASS
Article Introduction：This time I will bring you the first use of SASS. What are the precautions when using SASS for the first time? The following is a practical case, let’s take a look.
2018-03-19
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1730
MySQL IN usage
Article Introduction：MySQL IN usage
2016-12-27
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1912
__init__ usage in Python
Article Introduction：Usage of __init__ in Python: The object construction method in Python is the __init__ method. The function of this method is to initialize the properties and methods of the object. When using it, you only need to define it in the class. The first part of this method Each parameter must be the current object, and other parameters can be customized.
2020-06-02
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11145
Usage of php eof
Article Introduction：Usage of php eof: First create a PHP sample file; then define a string through the "echo <<<EOF <h1>...</h1>EOF;" syntax.
2021-03-30
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2753
C++ Smart Pointers: Advanced Usage and Considerations
Article Introduction：C++ smart pointers: Advanced usage and precautions Advanced usage: 1. Custom smart pointers: You can create your own smart pointers, inherit from std::unique_ptr or std::shared_ptr, and customize the behavior for specific needs. classCustomPtr:publicstd::unique_ptr{public:CustomPtr(int*ptr):std::unique_ptr(ptr){}~CustomPtr(){std::coutdoSomething();return
2024-05-09
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411
oracle sql usage
Article Introduction：Usage of Oracle SQL Oracle SQL is a structured query language using the Oracle relational database management system. It can perform operations such as querying, updating, inserting, and deleting data stored in the database. It also supports advanced operations such as joining multiple tables, sorting, grouping, and aggregation. This article will introduce the basic syntax and application examples of Oracle SQL to help readers understand its usage and advantages. 1. Basic syntax 1. SELECT statement The SELECT statement is the most commonly used in Oracle SQL.
2023-05-07
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849
html tags and usage
Article Introduction：With the popularity of the Internet, web design has become a widespread skill. For people who want to understand web design, it is essential to understand HTML tags and their usage. HTML is the abbreviation of HyperText Markup Language, which is a markup language used to describe the content of web pages. HTML tags are the core of HTML. Through these tags, we can control the structure and style of web pages. Next, let’s take a look at common HTML tags and their usage: 1. Doctype
2023-05-15
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871
Usage of json_encode in php
Article Introduction：Usage of json_encode in php: [json_encode($arr);]. json_encode means converting the data format of objects and arrays into json format data.
2020-10-12
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3285
