摘要：
//用法 加密转base 64NSString *str = [self base64StringFromText:@"qingjoin" withKey:@"key"];//转base 64 解密 NSString *stred = [self textFromBase64String:str withKey:@"key"];//文本先进行DES加密。然后再转成base64+ (NSString *)base64StringFromText:(NSString *)text withKey:(NSString*)key{ if (t 阅读全文
