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HomeBackend DevelopmentPHP Tutorial10 recommended articles about pack() function

    python中的struct主要是用来处理C结构数据的,读入时先转换为Python的字符串类型,然后再转换为Python的结构化类型,比如元组(tuple)啥的~。一般输入的渠道来源于文件或者网络的二进制流。1.struct.pack()和struct.unpack()    在转化过程中,主要用到了一个格式化字符串(format strings),用来规定转化的方法和格式。    下面来谈谈主要的方法:1.1 struct.pack(fmt,v1,v2,.....)  将v1,v2等参数的值进行一层包装,包装的方法由fmt指定。被包装的参数必须严格符合fmt。最后返回一个包装后的字符串。1.2 struct.unpack(fmt,string)  顾名思义,解包。比如pack打包,

1. 有关格式化字符串的文章推荐10篇

10 recommended articles about pack() function

简介:    python中的struct主要是用来处理C结构数据的,读入时先转换为Python的字符串类型,然后再转换为Python的结构化类型,比如元组(tuple)啥的~。一般输入的渠道来源于文件或者网络的二进制流。1.struct.pack()和struct.unpack()    在转化过程中,主要用到了一个格式化字符串(format...

2. 关于unpack()函数的10篇文章推荐

10 recommended articles about pack() function

简介:python中的struct主要是用来处理C结构数据的,读入时先转换为Python的字符串类型,然后再转换为Python的结构化类型,比如元组(tuple)啥的~。一般输入的渠道来源于文件或者网络的二进制流。1.struct.pack()和struct.unpack()    在转化过程中,主要用到了一个格式化字符串(format...

3. 有关pack()函数的文章推荐10篇

10 recommended articles about pack() function

简介:python中的struct主要是用来处理C结构数据的,读入时先转换为Python的字符串类型,然后再转换为Python的结构化类型,比如元组(tuple)啥的~。一般输入的渠道来源于文件或者网络的二进制流。1.struct.pack()和struct.unpack()    在转化过程中,主要用到了一个格式化字符串(format...

4. Python中struct.pack()和struct.unpack()用法详细说明

10 recommended articles about pack() function

简介:有如下代码 {代码...} 两个python版本分别为Python2.7.11Python3.5.1 在python2中得到的结果(, )a是一个类对象,a1是一个实例 在python3中得到的结果

5. python中struct.pack()函数和struct.unpack()函数的详细介绍

10 recommended articles about pack() function

简介:python中的struct主要是用来处理C结构数据的,读入时先转换为Python的字符串类型,然后再转换为Python的结构化类型,比如元组(tuple)啥的~。一般输入的渠道来源于文件或者网络的二进制流。

6. php常用函数(1)

10 recommended articles about pack() function

Introduction: In daily development, most novices are confused about how to remember so many PHP built-in functions. In fact, as long as you know that there is such a thing, it will be OK. When you use it a lot, you will naturally Remember, here is a collection of the most commonly used functions in PHP development. I hope it will be helpful to you. Some common functions of PHP are recorded. The usleep() function delays code execution for several microseconds. The unpack() function unpacks data from a binary string. The uniqid() function generates a unique ID based on the current time in microseconds. time_s...

7. Common PHP functions [Part 1]

10 recommended articles about pack() function

##Introduction: In daily development, most novices are confused about how to remember so many PHP built-in functions. In fact, as long as you know that there is such a thing, it will be OK. When you use it a lot, you will naturally Just remember it. Below is a collection of the most commonly used functions when developing PHP. I hope it will be helpful to you. Some common functions of PHP are recorded. The usleep() function delays code execution for several microseconds. The unpack() function unpacks data from a binary string. The uniqid() function generates a unique ID based on the current time in microseconds. time_s...

8. php pack() function detailed explanation and examples

Introduction::This article It mainly introduces the detailed explanation and examples of the php pack() function. Students who are interested in PHP tutorials can refer to it.

9. php display data Implementation method of PHP processing binary data

Introduction: php display data: php display Data implementation method of PHP processing binary data: PHP needs to use pack() and unpack() to process binary data. pack() is used to convert data into binary data. The usage method is as follows: pack("LL", 0,1); pack("C", a); unpack() can parse binary data into a relational array. It accepts 2 parameters, the usage method is as follows: $arr = unpack(“Chead”, $binstream); //Read the first byte $arr = unpack(“Chead/C3string

10. List of commonly used functions in PHP5 (share)_PHP tutorial

##Introduction: List of commonly used functions in PHP5 (share) as follows: Copy the code as follows: usleep. () function delays code execution for a number of microseconds. The unpack() function unpacks data from a binary string. The uniqid() function is based on microseconds

## [Related Q&A recommendations]:

javascript - webpack is not recognized as an internal or external command

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php怎么把负数转为正整数php怎么把负数转为正整数Apr 19, 2022 pm 08:59 PM

php把负数转为正整数的方法:1、使用abs()函数将负数转为正数,使用intval()函数对正数取整,转为正整数,语法“intval(abs($number))”;2、利用“~”位运算符将负数取反加一,语法“~$number + 1”。

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php字符串有没有下标php字符串有没有下标Apr 24, 2022 am 11:49 AM

php字符串有下标。在PHP中,下标不仅可以应用于数组和对象,还可应用于字符串,利用字符串的下标和中括号“[]”可以访问指定索引位置的字符,并对该字符进行读写,语法“字符串名[下标值]”;字符串的下标值(索引值)只能是整数类型,起始值为0。

php怎么除以100保留两位小数php怎么除以100保留两位小数Apr 22, 2022 pm 06:23 PM

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php怎么读取字符串后几个字符php怎么读取字符串后几个字符Apr 22, 2022 pm 08:31 PM

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php怎么根据年月日判断是一年的第几天php怎么根据年月日判断是一年的第几天Apr 22, 2022 pm 05:02 PM

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php怎么替换nbsp空格符php怎么替换nbsp空格符Apr 24, 2022 pm 02:55 PM

方法:1、用“str_replace(" ","其他字符",$str)”语句,可将nbsp符替换为其他字符;2、用“preg_replace("/(\s|\&nbsp\;||\xc2\xa0)/","其他字符",$str)”语句。

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查找方法:1、用strpos(),语法“strpos("字符串值","查找子串")+1”;2、用stripos(),语法“strpos("字符串值","查找子串")+1”。因为字符串是从0开始计数的,因此两个函数获取的位置需要进行加1处理。

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