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import Foundation | |
extension String { | |
/// 用GBK编码时的长度 | |
var gbkLength: Int { | |
let cfEncoding = CFStringEncodings.GB_18030_2000 | |
let encoding = CFStringConvertEncodingToNSStringEncoding(CFStringEncoding(cfEncoding.rawValue)) | |
let gbkData = (self as NSString).data(using: encoding)! | |
let gbkBytes = [UInt8](gbkData) | |
return gbkBytes.count |