PHP汉语言件字节大小单位的转换函数
PHP中文件字节大小单位的转换函数
文件大小的单位转换，自动将字节转换为KB、MB、GB等
function RealSize($size)
{
if ($size
?
<div class="clear">
</div>
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Use java's File.length() function to get the size of the file
Jul 24, 2023 am 08:36 AM
Use Java's File.length() function to get the size of a file. File size is a very common requirement when dealing with file operations. Java provides a very convenient way to get the size of a file, that is, using the length() method of the File class. . This article will introduce how to use this method to get the size of a file and give corresponding code examples. First, we need to create a File object to represent the file we want to get the size of. Here is how to create a File object: Filef
Detailed explanation of the usage of return in C language
Oct 07, 2023 am 10:58 AM
The usage of return in C language is: 1. For functions whose return value type is void, you can use the return statement to end the execution of the function early; 2. For functions whose return value type is not void, the function of the return statement is to end the execution of the function. The result is returned to the caller; 3. End the execution of the function early. Inside the function, we can use the return statement to end the execution of the function early, even if the function does not return a value.
What is the execution order of return and finally statements in Java?
Apr 25, 2023 pm 07:55 PM
Source code: publicclassReturnFinallyDemo{publicstaticvoidmain(String[]args){System.out.println(case1());}publicstaticintcase1(){intx;try{x=1;returnx;}finally{x=3;}}}#Output The output of the above code can simply conclude: return is executed before finally. Let's take a look at what happens at the bytecode level. The following intercepts part of the bytecode of the case1 method, and compares the source code to annotate the meaning of each instruction in
What does round mean in php
Mar 10, 2023 am 10:04 AM
In PHP, round means "rounding" and is a built-in function that converts floating point numbers into integers. This function can round floating point numbers and return an integer value of type float. The syntax is "round(number, precision,mode);".
How to divide and round using PHP's round() function
Mar 21, 2023 pm 04:32 PM
The round() function is a very useful function in the PHP number formatting library, which can round floating point numbers to a specified number of decimal places. However, since PHP's division operation may suffer from infinite decimals or loss of precision, rounding of the divisor is also necessary. Next, we will explain in detail how to use PHP's round() function to divide and round.
How does Vue3 use setup syntax sugar to refuse to write return
May 12, 2023 pm 06:34 PM
Vue3.2 setup syntax sugar is a compile-time syntax sugar that uses the combined API in a single file component (SFC) to solve the cumbersome setup in Vue3.0. The declared variables, functions, and content introduced by import are exposed through return, so that they can be used in Vue3.0. Problems in use 1. There is no need to return declared variables, functions and content introduced by import during use. You can use syntactic sugar //import the content introduced import{getToday}from'./utils'//variable constmsg='Hello !'//function func
Detailed explanation of JavaScript function return values and return statements
Aug 04, 2022 am 09:46 AM
JavaScript functions provide two interfaces to interact with the outside world. The parameters serve as the entrance to receive external information; the return value serves as the outlet to feed back the operation results to the outside world. The following article will take you to understand the JavaScript function return value and briefly analyze the usage of the return statement. I hope it will be helpful to you!
Use the return keyword in JavaScript
Feb 18, 2024 pm 12:45 PM
Usage of return in JavaScript requires specific code examples In JavaScript, the return statement is used to specify the value returned from a function. Not only can it be used to end the execution of a function, it can also return a value to the place where the function was called. The return statement has the following common uses: Return a value The return statement can be used to return a value to the place where the function is called. Here is a simple example: functionadd(a,b){
