encode_utf8 把字符编码成字节 decode_utf8解码UTF-8到字符

最新推荐文章于 2024-06-28 21:30:26 发布

scan724

最新推荐文章于 2024-06-28 21:30:26 发布

阅读量5.7k

点赞数

CC 4.0 BY-SA版权

分类专栏： perl LWP

本文链接：https://blog.youkuaiyun.com/zhaoyangjian724/article/details/51870778

perl LWP 专栏收录该内容

111 篇文章 ¥39.90 ¥99.00

订阅专栏

Perl的encode_utf8函数将字符串中的字符编码为UTF-8字节序列，而decode_utf8则将UTF-8字节解码回字符。虽然encode_utf8总是成功，但decode_utf8可能因无效的UTF-8序列而失败。提供了CHECK选项用于处理错误数据。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

   encode_utf8
      $octets = encode_utf8($string);

    Equivalent to "$octets = encode("utf8", $string)". The characters in
    $string are encoded in Perl's internal format, and the result is returned
    as a sequence of octets. Because all possible characters in Perl have a
    (loose, not strict) UTF-8 representation, this function cannot fail.
	
	
	等价于 "$octets = encode("utf8", $string)".  这个$string里的字符是编码成Perl内部的格式,
	
	结果是返回一个有序的八位字节。 因为所有的字符在Perl有一个(非正式的,不是严格的)表示,这个函数不能失败
	
	
	encode_utf8 把字符编码成字节

   decode_utf8
      $string = decode_utf8($octets [, CHECK]);

    Equivalent to "$string = decode("utf8", $octets [, CHECK])". The sequence
    of octets represented by $octets is decoded from UTF-8 into a sequence of
    logical characters. Because n

了解本专栏