iOS-URL参数解析为字典

/**
 获取url的参数

 @param url 需要提取的url
 @return 存放url参数的字典
 */
-(NSDictionary *) getUrlParameterWithUrl:(NSURL *)url {
    NSMutableDictionary *parm = [[NSMutableDictionary alloc]init];
    //传入url创建url组件类
    NSURLComponents *urlComponents = [[NSURLComponents alloc] initWithString:url.absoluteString];
    //回调遍历所有参数，添加入字典
    [urlComponents.queryItems enumerateObjectsUsingBlock:^(NSURLQueryItem * _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {
        [parm setObject:obj.value forKey:obj.name];
    }];
    return parm;
}