{"id":4156,"date":"2019-03-23T16:04:42","date_gmt":"2019-03-23T07:04:42","guid":{"rendered":"https:\/\/www.wsmeguro.jp\/wp\/?p=4156"},"modified":"2025-01-13T17:16:53","modified_gmt":"2025-01-13T08:16:53","slug":"dart%e3%81%ae%e5%8b%89%e5%bc%b7%ef%bc%96%ef%bc%9a%e6%9d%a1%e4%bb%b6%e5%88%86%e5%b2%90-if-else","status":"publish","type":"post","link":"https:\/\/www.wsmeguro.jp\/wp\/?p=4156","title":{"rendered":"Dart\u306e\u52c9\u5f37\uff16\uff1a\u6761\u4ef6\u5206\u5c90"},"content":{"rendered":"

\u6761\u4ef6\u5206\u5c90\u306e\u6700\u521d\u306fif else\u3067\u3059\u3002\u3053\u3093\u306a\u611f\u3058\u3067\u3059\u3002<\/p>\n

void main() {\r\n  var a = 2;\r\n  var b = 3;\r\n  if (a > b) {\r\n    print(\"$a is bigger than $b.\");\r\n  } else {\r\n    print(\"$a is smaller than $b.\");\r\n  }\r\n}\r\nresule:\r\n2 is smaller than 3.<\/pre>\n
\u6761\u4ef6\u306b\u30de\u30c3\u30c1\u3057\u305f\u5f8c\u306e\u51e6\u7406\u304c\uff11\u884c\u306a\u306e\u3067\u3001\u3053\u3093\u306a\u611f\u3058\u3067\u3082\u66f8\u3051\u307e\u3059\u3002<\/p>\n
void main() {\r\n  var a = 3;\r\n  var b = 5;\r\n  \/\/\u3053\u3046\u3044\u3046\u3084\u308a\u65b9\u3067\u3082\r\n  var c = a > b ? a : b;\r\n  print(c);\r\n  \/\/\u3053\u3046\u3044\u3046\u3084\u308a\u65b9\u3067\u3082\r\n  a > b ? print(a) : print(b);\r\n  \/\/\u3053\u3046\u3084\u308a\u65b9\u3067\u3082\u4e00\u7dd2\u3067\u3059\r\n  if (a > b) {\r\n    print(a);\r\n  } else {\r\n    print(b);\r\n  }\r\n}\r\n<\/pre>\n
<\/p>\n
\u6bb5\u968e\u7684\u306b\u6761\u4ef6\u8a2d\u5b9a\u3059\u308b\u5834\u5408\u306f\u3053\u3093\u306a\u611f\u3058\u3067\u3059\u3002<\/p>\n
void main() {\r\n  var score = 88;\r\n  if (score <= 100 && score > 80) {\r\n    print(\"Excellent!\");\r\n  } else if (score <= 80 && score > 60) {\r\n    print(\"Good!\");\r\n  } else if (score <= 60 && score >= 0) {\r\n    print(\"Work hard!\");\r\n  } else {\r\n    print(\"Invalid Score!\");\r\n  }\r\n}\r\n<\/pre>\n
null\u3092\u7c21\u5358\u306b\u30c1\u30a7\u30c3\u30af\u3059\u308b\u6a5f\u80fd\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n
void main() {\r\n  String name1 = \"Ichiro\";\r\n  String name2;\r\n  printName(name1);\r\n  printName(name2);\r\n}\r\n\r\nprintName(String name) {\r\n  var nameToPrint = name ?? \"Guest\";\r\n  print(\"Hi $nameToPrint\");\r\n}\r\n<\/pre>\n
\u7d9a\u3044\u3066switch case\u3067\u3059\u3002int\u304bString\u306e\u5834\u5408\u306f\u4f7f\u3048\u307e\u3059\u3002<\/p>\n
void main() {\r\n  \/\/switch case \u306fint\u304bString\u306b\u3057\u304b\u4f7f\u3048\u307e\u305b\u3093\u3002\r\n  var nationality = 'US';\r\n  switch (nationality) {\r\n    case 'US':\r\n      print(\"USA\");\r\n      break;\r\n    case \"UK\":\r\n      print(\"United Kingdom\");\r\n      break;\r\n    default:\r\n      print(\"Japan\");\r\n  }\r\n}<\/pre>\n","protected":false},"excerpt":{"rendered":"
\u6761\u4ef6\u5206\u5c90\u306e\u6700\u521d\u306fif else\u3067\u3059\u3002\u3053\u3093\u306a\u611f\u3058\u3067\u3059\u3002 void main() { var a = 2; var b = 3; if (a > b) { print(“$a is bigger than $b.”);…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"footnotes":""},"categories":[595,505],"tags":[627,601,619,624,625,626,623],"class_list":{"0":"post-4156","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"hentry","6":"category-dart2","7":"category-programming","8":"tag-627","9":"tag-dart","11":"tag-if-else","12":"tag-null","13":"tag-switch-case","14":"tag-623"},"_links":{"self":[{"href":"https:\/\/www.wsmeguro.jp\/wp\/index.php?rest_route=\/wp\/v2\/posts\/4156","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.wsmeguro.jp\/wp\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.wsmeguro.jp\/wp\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.wsmeguro.jp\/wp\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.wsmeguro.jp\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=4156"}],"version-history":[{"count":5,"href":"https:\/\/www.wsmeguro.jp\/wp\/index.php?rest_route=\/wp\/v2\/posts\/4156\/revisions"}],"predecessor-version":[{"id":4218,"href":"https:\/\/www.wsmeguro.jp\/wp\/index.php?rest_route=\/wp\/v2\/posts\/4156\/revisions\/4218"}],"wp:attachment":[{"href":"https:\/\/www.wsmeguro.jp\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4156"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.wsmeguro.jp\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4156"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.wsmeguro.jp\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4156"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}