iOS9 字符串或url的 UTF-8 編解碼

您需要加密的字符串

NSString *str = @"您需要加密的字符串GG...";

編碼

//? ? 被棄用的編碼方法

//? ? NSString *encodeStr =[str stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];

//? ? 替代方法實現

NSString *charactersToEscape = @"?!@#$^&%*+,:;='\"`<>()[]{}/\\| ";//此處不做更改，

NSCharacterSet *allowedCharacters = [[NSCharacterSet characterSetWithCharactersInString:charactersToEscape] invertedSet];

NSString *encodeStr = [str stringByAddingPercentEncodingWithAllowedCharacters:allowedCharacters];

NSLog(@"encodeStr___%@",encodeStr);

解碼

//? ? 被棄用的解碼方法

//? ? NSString *deCodeStr = [encodeStr stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];

NSString *deCodeStr = encodeStr.stringByRemovingPercentEncoding;

NSLog(@"deCodeStr__%@",deCodeStr);