{"id":3472,"date":"2022-03-08T17:32:45","date_gmt":"2022-03-08T09:32:45","guid":{"rendered":"https:\/\/feizhaojun.com\/?p=3472"},"modified":"2022-03-08T17:32:45","modified_gmt":"2022-03-08T09:32:45","slug":"flutterdart%e6%97%a5%e6%9c%9f%e6%a0%bc%e5%bc%8f%e5%8c%96%e5%8f%8a%e6%97%b6%e9%97%b4%e6%88%b3%e8%bd%ac%e6%8d%a2","status":"publish","type":"post","link":"https:\/\/feizhaojun.com\/?p=3472","title":{"rendered":"Flutter&Dart\u65e5\u671f\u683c\u5f0f\u5316\u53ca\u65f6\u95f4\u6233\u8f6c\u6362"},"content":{"rendered":"

\u83b7\u53d6\u5f53\u524d\u65f6\u95f4<\/h3>\n

Dart \u83b7\u53d6\u5f53\u524d\u65f6\u95f4\uff0c\u4ee5\u53ca\u83b7\u53d6\u5f53\u524d\u5e74\u3001\u6708\u3001\u65e5\u7b49\u3002<\/p>\n

DateTime currentTime = DateTime.now();\n\ncurrentTime.year \/\/ \u5f53\u524d\u5e74\ncurrentTime.month \/\/ \u5f53\u524d\u6708\ncurrentTime.day \/\/ \u5f53\u524d\u65e5\ncurrentTime.hour \/\/ \u5f53\u524d\u65f6\ncurrentTime.minute \/\/ \u5f53\u524d\u5206\ncurrentTime.second \/\/ \u5f53\u524d\u79d2\ncurrentTime.millisecond \/\/ \u5f53\u524d\u6beb\u79d2\ncurrentTime.microsecond \/\/ \u5f53\u524d\u5fae\u79d2\n\ncurrentTime.millisecondsSinceEpoch \/\/ \u5f53\u524d13\u4f4d\u6beb\u79d2\u65f6\u95f4\u6233\ncurrentTime.microsecondsSinceEpoch \/\/ \u5f53\u524d16\u4f4d\u5fae\u79d2\u6570\n\ncurrentTime.timeZoneName \/\/ \u672c\u5730\u65f6\u533a\u7b80\u7801\uff1aGMT\ncurrentTime.timeZoneOffset \/\/ \u8fd4\u56deUTC\u4e0e\u672c\u5730\u65f6\u5dee\n<\/code><\/pre>\n
\u521b\u5efa\u6307\u5b9a\u65f6\u95f4<\/h3>\n
\/\/ \u53c2\u6570\u987a\u5e8f\u4f9d\u6b21\u662f\u5e74\u6708\u65e5\u65f6\u5206\u79d2\nDateTime time = new DateTime(2022, 3, 22, 12, 33, 55);\n<\/code><\/pre>\n
\u521b\u5efa\u6307\u5b9a\u65f6\u95f4\u8fd8\u53ef\u4ee5\u76f4\u63a5\u4ece\u7b26\u5408\u65e5\u671f\u683c\u5f0f\u7684\u5b57\u7b26\u4e32\u76f4\u63a5\u8f6c\u6362\uff0c\u5982\u4e0b\u3002<\/p>\n
\u8f6c\u6362<\/h3>\n
\u65e5\u671f\u5b57\u7b26\u4e32\u8f6c\u4e3a\u65f6\u95f4<\/h5>\n
\/\/ \u5982\u679c\u6ca1\u6709\u5206\u3001\u79d2\u3001\u6beb\u79d2\uff0c\u7a0b\u5e8f\u4f1a\u81ea\u52a8\u88650\nDateTime.parse('2022-03-08');\nDateTime.parse('2022-03-08 17');\nDateTime.parse('2022-03-08 17:01:22.789');\n\/\/ \u52a0\u4e0a\u65f6\u533a\nDateTime.parse('2022-03-08 17:01:22+0800');\n<\/code><\/pre>\n
\u65e5\u671f\u65f6\u95f4\u8f6c\u6210\u65f6\u95f4\u6233<\/h5>\n
DateTime currentTime = DateTime.now();\n\ncurrentTime.millisecondsSinceEpoch \/\/ \u5f53\u524d13\u4f4d\u6beb\u79d2\u65f6\u95f4\u6233\ncurrentTime.microsecondsSinceEpoch \/\/ \u5f53\u524d16\u4f4d\u5fae\u79d2\u6570\n<\/code><\/pre>\n
\u65f6\u95f4\u6233\u8f6c\u65e5\u671f\u65f6\u95f4<\/h5>\n
int time = 1646728287921;\nDateTime.fromMillisecondsSinceEpoch(time);\n<\/code><\/pre>\n
\u65f6\u95f4\u6bd4\u8f83<\/h3>\n
\/\/ \u6bd4\u8f83\u4e24\u4e2a\u65f6\u95f4\u7684\u95f4\u9694\uff0c\u4f7f\u7528 difference() \u548c Duration()\n\n\/\/ difference() \u53ef\u4ee5\u8ba1\u7b97\u4e24\u4e2a\u65f6\u95f4\u5dee\ntime1.difference(time2) > Duration(year: 1, hours: 1, seconds: 1);\n\nDuration diff = time1.difference(time2)\ndiff.inDays\ndiff.inHours\ndiff.inMinutes\n\n\/\/ Duration() \u662f\u4e00\u4e2a\u65f6\u95f4\u6bb5\u957f\u5ea6\nDuration timeDuration = new Duration(days: 1, minutes: 34);\n\n\/\/ \u65f6\u95f4\u5148\u540e\u6bd4\u8f83\ntime1.isAtSameMomentAs(time2) \/\/ \u65f6\u95f4\u76f8\u7b49\uff0c\u8fd4\u56de true\ntime1.isBefore(time2) \/\/ time1 \u65e9\uff0c\u8fd4\u56de true\ntime1.isAfter(time2) \/\/ time1 \u665a\uff0c\u8fd4\u56de true\ntime1.compareTo(time2) \/\/ time1 \u665a\uff0c\u8fd4\u56de 1\uff1btime1 \u665a\uff0c\u8fd4\u56de -1\n<\/code><\/pre>\n
\u65f6\u95f4\u52a0\u51cf<\/h3>\n
\u53ef\u4ee5\u7ed9\u67d0\u4e2a\u65f6\u95f4\u589e\u52a0\u6216\u51cf\u5c11\u65f6\u95f4\u6bb5\uff08Duration\uff09\u3002<\/p>\n
DateTime time = DateTime.now();\ntime.add(new Duration(days: 5)); \/\/ \u65f6\u95f4\u589e\u52a0\ntime.add(new Duration(days: -5)); \/\/ \u65f6\u95f4\u51cf\u5c11\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"
\u83b7\u53d6\u5f53\u524d\u65f6\u95f4 Dart \u83b7\u53d6\u5f53\u524d\u65f6\u95f4\uff0c\u4ee5\u53ca\u83b7\u53d6\u5f53\u524d\u5e74\u3001\u6708\u3001\u65e5\u7b49\u3002 DateTime currentTime = Date…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[85,29],"tags":[],"class_list":["post-3472","post","type-post","status-publish","format-standard","hentry","category-flutterdart","category-29"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/feizhaojun.com\/index.php?rest_route=\/wp\/v2\/posts\/3472","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/feizhaojun.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/feizhaojun.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/feizhaojun.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/feizhaojun.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3472"}],"version-history":[{"count":1,"href":"https:\/\/feizhaojun.com\/index.php?rest_route=\/wp\/v2\/posts\/3472\/revisions"}],"predecessor-version":[{"id":3473,"href":"https:\/\/feizhaojun.com\/index.php?rest_route=\/wp\/v2\/posts\/3472\/revisions\/3473"}],"wp:attachment":[{"href":"https:\/\/feizhaojun.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3472"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/feizhaojun.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3472"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/feizhaojun.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3472"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}