Unicode转化为汉字

+ (NSString *)replaceUnicode:(NSString *)unicodeStr { NSString *tempStr1 = [unicodeStrstringByReplacingOccurrencesOfString:@"\\u"withString:@"\\U"]; NSString *tempStr2 = [tempStr1stringByReplacingOccurrencesOfString:@"\""withString:@"\\\""]; NSString *tempStr3 = [[@"\""stringByAppendingString:tempStr2]stringByAppendingString:@"\""]; NSData *tempData = [tempStr3dataUsingEncoding:NSUTF8StringEncoding]; NSString* returnStr = [NSPropertyListSerializationpropertyListFromData:tempData mutabilityOption:NSPropertyListImmutable format:NULL errorDescription:NULL]; return [returnStrstringByReplacingOccurrencesOfString:@"\\r\\n"withString:@"\n"]; }

A: There are three or four options for making Unicode fit into an 8-bit format.a) Use UTF-8. This preserves ASCII, but not Latin-1, because the characters >127 are different from Latin-1. UTF-8 uses the bytes in the ASCII only for ASCII characters. Therefore, it works well in any environment where ASCII characters have a significance as syntax characters, e.g. file name syntaxes, markup languages, etc., but where the all other characters may use arbitrary bytes. b) Use Java or C style escapes, of the form \uXXXXX or \xXXXXX. This format is not standard for text files, but well defined in the framework of the languages in question, primarily for source files.c) Use the &#xXXXX; or &#DDDDD; numeric character escapes as in HTML or Example: “wyjście” would look like “wyjście"d) Use SCSU. This format compresses Unicode into 8-bit format, preserving most of ASCII, but using some of the control codes as commands for the decoder. However, while ASCII text will look like ASCII text after being encoded in SCSU, other characters may occasionally be encoded with the same byte values, making SCSU unsuitable for 8-bit channels that blindly interpret any of the bytes as ASCII characters.所以编码过程是字符串 -> Unicode编码 -> &#xXXXX; or &#DDDDD; 解码过程反过来即可 http://unicode.org/faq/utf_bom.html#General

 

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原标题：Unicode转化为汉字

关键词：Unicode