若要进行不同编码之间的转换,可以使用Encode模块中的decode函数和encode函数,这两个函数使用如下 $octets = encode(ENCODING, STRING); 将标量字符串STRING从perl内部格式编码成ENCODING格式,并且返回字节流序列。 Forexample,toconvert astringfromPerl's internal format into ISO-8859-1:$octets = encode("iso-8859...
perl:将字符串转换为utf-8进行json解码 perl: convert a string to utf-8 for json decode 我正在爬网网站并从其JSON收集信息。 结果保存在哈希中。 但是有些页面给我" JSON字符串中的UTF-8格式错误的字符"错误。 我注意到" cafe"中的最后一个字母将产生错误。 我认为这是由于字符类型的混合。 因此,现在我...
EN按照choroba's comment to the question中的建议使用Math::Base::Convert
在Perl看来, 字符串只有两种形式. 一种是octets, 即8位序列, 也就是我们通常说的字节数组. 另一种utf8编码的字符串, perl管它叫string. 也就是说: Perl只认识两种编码: Ascii(octets)和utf8(string). utf8 flag 那么perl如何确定一个字符串是octets还是utf8编码的字符串呢? perl可没有什么智能, 他完全是...
‘postgresql+psycopg2://’+ conn_user+’:’+conn_password+’@’+conn_server+’/’+conn_database conn = pyodbc.connect(conn_string, connect_args={‘options’:’-csearch_path=dbo’}) cur = conn.cursor()...
Converts the given Perl data structure to a UTF-8 encoded, binary string. This function call is functionally identical to: $json_text = JSON->new->utf8->encode($perl_scalar) 转换给定的perl数据结构到一个UTF-8编码的,2进制的字符串。
"s" is a string. "sv", "av", "hv", etc. represent variables of their respective types. File Operations Instead of the stdio.h functions, you should use the Perl abstraction layer. Instead of "FILE*" types, you need to be handling "PerlIO*" types. Don't forget that with the new...
$$x now tries to dereference $x, Creation of hashes on the fly with "eval "EXPR"" requires protection, Bugs in earlier perl versions, Array and hash brackets during interpolation, Interpolation of "\$$foo{bar}", "qq()" string passed to "eval" will not find string terminator DBM Traps...
How to convert a scalar string into a hexadecimal format3.6. Perl index function3.6.1. The syntax forms3.6.2. How to check if a string is a substring of another3.6.3. How to find the leftmost occurrence of a substring in a string3.6.4. How to find all the occurrences of a substring...
The tc method converts a string to the so-called title case, where the first letter of the string is capital.say 'hey, you'.tc; # Hey, youNotice that, if the string already contains uppercase letters, they will remain as is: