【Swift】读取文本文件字符串

var str:NSString = NSString.stringWithContentsOfFile(_srcouceFilePath,encoding:NSUTF8StringEncoding,error:nil)

读取中文时首先要取得中文编码

var encode:NSStringEncoding = CFStringConvertEncodingToNSStringEncoding(CFStringEncoding(CFStringEncodings.GB_18030_2000.toRaw()))

//现在的格式

var encode=CFStringConvertEncodingToNSStringEncoding(CFStringEncoding(CFStringEncodings.GB_2312_80.rawValue))

var str:NSString = NSString.stringWithContentsOfFile(_srcouceFilePath,encoding:encode,error:nil)

http://blog.sina.com.cn/s/blog_8a323e5c0101i3gz.html

转换成  字符编码

var b="中国"

var data=b.dataUsingEncoding(NSUTF8StringEncoding, allowLossyConversion: true)

let cfEnc = CFStringEncodings.GB_18030_2000

let enc = CFStringConvertEncodingToNSStringEncoding(CFStringEncoding(cfEnc.rawValue))

let a = NSString(data: data!, encoding: enc)!