解析URL的参数为字典

- (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;
}

https://www.jianshu.com/p/93cc6dae2d5e

https://www.jianshu.com/p/71f3289b3883