我是JSON的新手，我正在尝试在变量中存储多个值 .
这里我有从我的网站获得的示例输出
2016-12-04 22:17:53.137949 API Demo[739:12497] [] nw_host_stats_add_src recv too small, received 24, expected 28
2016-12-04 22:17:53.142094 API Demo[739:12497] [] ____nwlog_simulate_crash_inner_block_invoke dlopen CrashReporterSupport failed
2016-12-04 22:17:53.142577 API Demo[739:12497] [] __nwlog_err_simulate_crash simulate crash failed "nw_socket_set_common_sockopts setsockopt SO_NOAPNFALLBK failed: [42] Protocol not available"
2016-12-04 22:17:53.145324 API Demo[739:12497] [] nw_socket_set_common_sockopts setsockopt SO_NOAPNFALLBK failed: [42] Protocol not available, dumping backtrace:
[x86_64] libnetcore-856.20.4
0 libsystem_network.dylib 0x00000001073a2682 __nw_create_backtrace_string + 123
1 libnetwork.dylib 0x000000010767f932 nw_socket_add_input_handler + 3100
2 libnetwork.dylib 0x000000010765d4f4 nw_endpoint_flow_attach_protocols + 3768
3 libnetwork.dylib 0x000000010765c511 nw_endpoint_flow_setup_socket + 563
4 libnetwork.dylib 0x000000010765b270 -[NWConcrete_nw_endpoint_flow startWithHandler:] + 2612
5 libnetwork.dylib 0x000000010767644d nw_endpoint_handler_path_change + 1261
6 libnetwork.dylib 0x0000000107675e7c nw_endpoint_handler_start + 570
7 libnetwork.dylib 0x000000010768dae5 nw_endpoint_resolver_start_next_child + 2240
8 libdispatch.dylib 0x000000010711f980 _dispatch_call_block_and_release + 12
9 libdispatch.dylib 0x00000001071490cd _dispatch_client_callout + 8
10 libdispatch.dylib 0x0000000107126e6b _dispatch_queue_serial_drain + 236
11 libdispatch.dylib 0x0000000107127b9f _dispatch_queue_invoke + 1073
12 libdispatch.dylib 0x000000010712a3b7 _dispatch_root_queue_drain + 720
13 libdispatch.dylib 0x000000010712a08b _dispatch_worker_thread3 + 123
14 libsystem_pthread.dylib 0x00000001074f24de _pthread_wqthread + 1129
15 libsystem_pthread.dylib 0x00000001074f0341 start_wqthread + 13
(
{
"_links" = {
about = (
{
href = "http://dpfqatar.com/wp-json/wp/v2/types/post";
}
);
author = (
{
embeddable = 1;
href = "http://dpfqatar.com/wp-json/wp/v2/users/1";
}
);
collection = (
{
href = "http://dpfqatar.com/wp-json/wp/v2/posts";
}
);
curies = (
{
href = "https://api.w.org/{rel}";
name = wp;
templated = 1;
}
);
replies = (
{
embeddable = 1;
href = "http://dpfqatar.com/wp-json/wp/v2/comments?post=56";
}
);
self = (
{
href = "http://dpfqatar.com/wp-json/wp/v2/posts/56";
}
);
"version-history" = (
{
href = "http://dpfqatar.com/wp-json/wp/v2/posts/56/revisions";
}
);
"wp:attachment" = (
{
href = "http://dpfqatar.com/wp-json/wp/v2/media?parent=56";
}
);
"wp:term" = (
{
embeddable = 1;
href = "http://dpfqatar.com/wp-json/wp/v2/categories?post=56";
taxonomy = category;
},
{
embeddable = 1;
href = "http://dpfqatar.com/wp-json/wp/v2/tags?post=56";
taxonomy = "post_tag";
}
);
};
author = 1;
categories = (
3
);
"comment_status" = open;
content = {
protected = 0;
rendered = " A huge alligator snapping turtle got stuck in a blocked drain pipe in Houston, Texas. \n";
};
date = "2016-12-04T23:32:08";
"date_gmt" = "2016-12-04T20:32:08";
excerpt = {
protected = 0;
rendered = " A huge alligator snapping turtle got stuck in a blocked drain pipe in Houston, Texas. \n";
};
"featured_media" = 0;
format = standard;
guid = {
rendered = "http://dpfqatar.com/?p=56";
};
id = 56;
link = "http://dpfqatar.com/alligator-snapping-turtles-great-escape/";
meta = {
};
modified = "2016-12-04T23:32:29";
"modified_gmt" = "2016-12-04T20:32:29";
"ping_status" = open;
slug = "alligator-snapping-turtles-great-escape";
sticky = 0;
tags = (
);
title = {
rendered = "Alligator snapping turtle’s great escape";
};
type = post;
},
{
"_links" = {
about = (
{
href = "http://dpfqatar.com/wp-json/wp/v2/types/post";
}
);
author = (
{
embeddable = 1;
href = "http://dpfqatar.com/wp-json/wp/v2/users/1";
}
);
collection = (
{
href = "http://dpfqatar.com/wp-json/wp/v2/posts";
}
);
curies = (
{
href = "https://api.w.org/{rel}";
name = wp;
templated = 1;
}
);
replies = (
{
embeddable = 1;
href = "http://dpfqatar.com/wp-json/wp/v2/comments?post=54";
}
);
self = (
{
href = "http://dpfqatar.com/wp-json/wp/v2/posts/54";
}
);
"version-history" = (
{
href = "http://dpfqatar.com/wp-json/wp/v2/posts/54/revisions";
}
);
"wp:attachment" = (
{
href = "http://dpfqatar.com/wp-json/wp/v2/media?parent=54";
}
);
"wp:term" = (
{
embeddable = 1;
href = "http://dpfqatar.com/wp-json/wp/v2/categories?post=54";
taxonomy = category;
},
{
embeddable = 1;
href = "http://dpfqatar.com/wp-json/wp/v2/tags?post=54";
taxonomy = "post_tag";
}
);
};
author = 1;
categories = (
3
);
"comment_status" = open;
content = {
protected = 0;
rendered = " Now don\U2019t worry\U200a-\U200ait\U2019s not shrieked amidst some kind of panicked, cold sweat. I\U2019m not having nightmares about search engines, or even the prolonged suffering of Google+ (though someone surely should be). \n";
};
date = "2016-12-04T23:31:00";
"date_gmt" = "2016-12-04T20:31:00";
excerpt = {
protected = 0;
rendered = " Now don\U2019t worry\U200a-\U200ait\U2019s not shrieked amidst some kind of panicked, cold sweat. I\U2019m not having nightmares about search engines, or even the prolonged suffering of Google+ (though someone surely should be). \n";
};
"featured_media" = 0;
format = standard;
guid = {
rendered = "http://dpfqatar.com/?p=54";
};
id = 54;
link = "http://dpfqatar.com/okay-google-you-need-a-cuter-name/";
meta = {
};
modified = "2016-12-04T23:31:00";
"modified_gmt" = "2016-12-04T20:31:00";
"ping_status" = open;
slug = "okay-google-you-need-a-cuter-name";
sticky = 0;
tags = (
);
title = {
rendered = "Okay Google, you need a cuter name";
};
type = post;
},
{
"_links" = {
about = (
{
href = "http://dpfqatar.com/wp-json/wp/v2/types/post";
}
);
author = (
{
embeddable = 1;
href = "http://dpfqatar.com/wp-json/wp/v2/users/1";
}
);
collection = (
{
href = "http://dpfqatar.com/wp-json/wp/v2/posts";
}
);
curies = (
{
href = "https://api.w.org/{rel}";
name = wp;
templated = 1;
}
);
replies = (
{
embeddable = 1;
href = "http://dpfqatar.com/wp-json/wp/v2/comments?post=52";
}
);
self = (
{
href = "http://dpfqatar.com/wp-json/wp/v2/posts/52";
}
);
"version-history" = (
{
href = "http://dpfqatar.com/wp-json/wp/v2/posts/52/revisions";
}
);
"wp:attachment" = (
{
href = "http://dpfqatar.com/wp-json/wp/v2/media?parent=52";
}
);
"wp:term" = (
{
embeddable = 1;
href = "http://dpfqatar.com/wp-json/wp/v2/categories?post=52";
taxonomy = category;
},
{
embeddable = 1;
href = "http://dpfqatar.com/wp-json/wp/v2/tags?post=52";
taxonomy = "post_tag";
}
);
};
author = 1;
categories = (
7
);
"comment_status" = open;
content = {
protected = 0;
rendered = "Apple has acknowledged for the first time that it is investing in building a self-driving car. \n In a letter to US transport regulators, Apple said it was “excited about the potential of automated systems in many areas, including transportation” \n";
};
date = "2016-12-04T23:30:05";
"date_gmt" = "2016-12-04T20:30:05";
excerpt = {
protected = 0;
rendered = " Apple has acknowledged for the first time that it is investing in building a self-driving car. In a letter to US transport regulators, Apple said it was “excited about the potential of automated systems in many areas, including transportation” \n";
};
"featured_media" = 0;
format = standard;
guid = {
rendered = "http://dpfqatar.com/?p=52";
};
id = 52;
link = "http://dpfqatar.com/apple-reveals-self-driving-car-plans/";
meta = {
};
modified = "2016-12-04T23:30:05";
"modified_gmt" = "2016-12-04T20:30:05";
"ping_status" = open;
slug = "apple-reveals-self-driving-car-plans";
sticky = 0;
tags = (
);
title = {
rendered = "Apple reveals self-driving car plans";
};
type = post;
}
)
这是我的代码：
let url = URL(string: "http://www.dpfqatar.com/wp-json/wp/v2/posts")!
let task = URLSession.shared.dataTask(with: url) { (data, response, error) in
if error != nil {
print(error)
} else {
if let urlContent = data {
do {
let jsonResult = try JSONSerialization.jsonObject(with: urlContent, options: JSONSerialization.ReadingOptions.mutableContainers) as AnyObject
print(jsonResult)
} catch {
print("JSON Processing Failed")
} } } }
task.resume()
如何在此示例中同时打印 id 和 title ？我尝试了很多方法，但没有任何方法可以帮助我 .
2 回答
Thanks 为了你所有的帮助，我在深度搜索后找到答案，
它看起来像你有一个元素，一个元素，一个字典 .
您可以从数据中提取
id和title，如下所示：（请注意，我在SO编辑器中编写了该代码 . 它可能包含一两个小的语法错误 . 您需要自己清理它 . ）