Unicode is a coding standard developed by unicode.org and is currently supported by most operating systems and programming languages. unicode.org official definition of Unicode is: Unicode provides a unique number for every character. As you can see,
Since I started programming, I have been familiar with coding and have never mastered the essence. For example, what is the relationship between ansi and gbk? What is the relationship between gbk and gb2312? What is the difference between ansi and
Since the contact programming, has been to the coding knowledge smattering, always has not mastered the essence.For example: the relationship between ANSI and GBK, what is the relationship between GBK and gb2312, what is the difference between ANSI
Character Set charset: defines the number of characters contained in a set, that is, the characters that belong to the character set and do not belong to the set, such as ASCII, GBK, Unicode. Almost all other character sets contain the ASCII
Open a Notepad under Windows and save the file with four encoding choices below. ANSI, which is the multibyte character set, is the char (char) string in VC. Unicode, which is UTF16, is the WCHAR (wchar_t) string in VC. Unicode big endian, is UTF32,
Today, using Unicode as a string is a common sense, but it's still a headache for some programming languages with a long history. Without the support of a third-party library, C + + does not actually support Unicode effectively, even if it is UTF8. (
C ++ does not support Unicode, even utf8, unicodeutf8So far, unicode is a common sense, but it is still a headache for some programming languages with a long history. Without the support of third-party libraries, C ++ does not actually effectively
Today, using Unicode as a string is a common sense, but it's still a headache for some programming languages with a long history. Without the support of a third-party library, C + + does not actually support Unicode effectively, even if it is UTF8. (
UTF8 is the most basic unit of 8bits or 1Bytes encoding, of course, it can also be based on 16bits and 32bits, respectively, called UTF16 and UTF32, but the current use is not much, and UTF8 is widely used in file storage and network transmission.
1. Determine Based on BOM first
The BOM of the UTF-8: ef bb bf; the corresponding decimal value is: 239 187 191 if the first three bytes of the file match with it, the file encoding is utf8
The UTF-16LE BOM: FF Fe; the corresponding decimal value
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