{"id":535,"date":"2018-02-23T23:39:04","date_gmt":"2018-02-23T15:39:04","guid":{"rendered":"http:\/\/60.205.208.74\/2018\/02\/23\/swift-%e6%9e%9a%e4%b8%be\/"},"modified":"2018-02-23T23:39:04","modified_gmt":"2018-02-23T15:39:04","slug":"swift-%e6%9e%9a%e4%b8%be","status":"publish","type":"post","link":"https:\/\/www.puzi7.net\/?p=535","title":{"rendered":"Swift \u679a\u4e3e"},"content":{"rendered":"
\n
\n

Swift \u679a\u4e3e<\/h1>\n

\u679a\u4e3e\u7b80\u5355\u7684\u8bf4\u4e5f\u662f\u4e00\u79cd\u6570\u636e\u7c7b\u578b\uff0c\u53ea\u4e0d\u8fc7\u662f\u8fd9\u79cd\u6570\u636e\u7c7b\u578b\u53ea\u5305\u542b\u81ea\u5b9a\u4e49\u7684\u7279\u5b9a\u6570\u636e\uff0c\u5b83\u662f\u4e00\u7ec4\u6709\u5171\u540c\u7279\u6027\u7684\u6570\u636e\u7684\u96c6\u5408\u3002<\/p>\n

Swift \u7684\u679a\u4e3e\u7c7b\u4f3c\u4e8e Objective C \u548c C \u7684\u7ed3\u6784\uff0c\u679a\u4e3e\u7684\u529f\u80fd\u4e3a:<\/p>\n

    \n
  • \n

    \u5b83\u58f0\u660e\u5728\u7c7b\u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u5b9e\u4f8b\u5316\u7c7b\u6765\u8bbf\u95ee\u5b83\u7684\u503c\u3002<\/p>\n<\/li>\n

  • \n

    \u679a\u4e3e\u4e5f\u53ef\u4ee5\u5b9a\u4e49\u6784\u9020\u51fd\u6570\uff08initializers\uff09\u6765\u63d0\u4f9b\u4e00\u4e2a\u521d\u59cb\u6210\u5458\u503c\uff1b\u53ef\u4ee5\u5728\u539f\u59cb\u7684\u5b9e\u73b0\u57fa\u7840\u4e0a\u6269\u5c55\u5b83\u4eec\u7684\u529f\u80fd\u3002<\/p>\n<\/li>\n

  • \n

    \u53ef\u4ee5\u9075\u5b88\u534f\u8bae\uff08protocols\uff09\u6765\u63d0\u4f9b\u6807\u51c6\u7684\u529f\u80fd\u3002<\/p>\n<\/li>\n<\/ul>\n

    \u8bed\u6cd5<\/h3>\n

    Swift \u4e2d\u4f7f\u7528 enum \u5173\u952e\u8bcd\u6765\u521b\u5efa\u679a\u4e3e\u5e76\u4e14\u628a\u5b83\u4eec\u7684\u6574\u4e2a\u5b9a\u4e49\u653e\u5728\u4e00\u5bf9\u5927\u62ec\u53f7\u5185\uff1a<\/p>\n

    \nenum enumname {\n   \/\/ \u679a\u4e3e\u5b9a\u4e49\u653e\u5728\u8fd9\u91cc\n}\n<\/pre>\n
    \u4f8b\u5982\u6211\u4eec\u5b9a\u4e49\u4ee5\u4e0b\u8868\u793a\u661f\u671f\u7684\u679a\u4e3e\uff1a<\/p>\n
    \nimport Cocoa\n\n\/\/ \u5b9a\u4e49\u679a\u4e3e\nenum DaysofaWeek {\n    case Sunday\n    case Monday\n    case TUESDAY\n    case WEDNESDAY\n    case THURSDAY\n    case FRIDAY\n    case Saturday\n}\n\nvar weekDay = DaysofaWeek.THURSDAY\nweekDay = .THURSDAY\nswitch weekDay\n{\ncase .Sunday:\n    print(\"\u661f\u671f\u5929\")\ncase .Monday:\n    print(\"\u661f\u671f\u4e00\")\ncase .TUESDAY:\n    print(\"\u661f\u671f\u4e8c\")\ncase .WEDNESDAY:\n    print(\"\u661f\u671f\u4e09\")\ncase .THURSDAY:\n    print(\"\u661f\u671f\u56db\")\ncase .FRIDAY:\n    print(\"\u661f\u671f\u4e94\")\ncase .Saturday:\n    print(\"\u661f\u671f\u516d\")\n}\n<\/pre>\n
    \u4ee5\u4e0a\u7a0b\u5e8f\u6267\u884c\u8f93\u51fa\u7ed3\u679c\u4e3a\uff1a<\/p>\n
    \u661f\u671f\u56db\n<\/pre>\n
    \u679a\u4e3e\u4e2d\u5b9a\u4e49\u7684\u503c\uff08\u5982 Sunday<\/code>\uff0cMonday<\/code>\uff0c\u2026\u2026<\/code>\u548cSaturday<\/code>\uff09\u662f\u8fd9\u4e2a\u679a\u4e3e\u7684\u6210\u5458\u503c<\/strong>\uff08\u6216\u6210\u5458<\/strong>\uff09\u3002case<\/code>\u5173\u952e\u8bcd\u8868\u793a\u4e00\u884c\u65b0\u7684\u6210\u5458\u503c\u5c06\u88ab\u5b9a\u4e49\u3002<\/p>\n
    \n
    \u6ce8\u610f\uff1a
    \n\u548c C \u548c Objective-C \u4e0d\u540c\uff0cSwift \u7684\u679a\u4e3e\u6210\u5458\u5728\u88ab\u521b\u5efa\u65f6\u4e0d\u4f1a\u88ab\u8d4b\u4e88\u4e00\u4e2a\u9ed8\u8ba4\u7684\u6574\u578b\u503c\u3002\u5728\u4e0a\u9762\u7684DaysofaWeek<\/code>\u4f8b\u5b50\u4e2d\uff0cSunday<\/code>\uff0cMonday<\/code>\uff0c\u2026\u2026<\/code>\u548cSaturday<\/code>\u4e0d\u4f1a\u9690\u5f0f\u5730\u8d4b\u503c\u4e3a0<\/code>\uff0c1<\/code>\uff0c\u2026\u2026<\/code>\u548c6<\/code>\u3002\u76f8\u53cd\uff0c\u8fd9\u4e9b\u679a\u4e3e\u6210\u5458\u672c\u8eab\u5c31\u6709\u5b8c\u5907\u7684\u503c\uff0c\u8fd9\u4e9b\u503c\u662f\u5df2\u7ecf\u660e\u786e\u5b9a\u4e49\u597d\u7684DaysofaWeek<\/code>\u7c7b\u578b\u3002<\/p>\n<\/blockquote>\n
    var weekDay = DaysofaWeek.THURSDAY \n<\/pre>\n
    weekDay<\/code>\u7684\u7c7b\u578b\u53ef\u4ee5\u5728\u5b83\u88abDaysofaWeek<\/code>\u7684\u4e00\u4e2a\u53ef\u80fd\u503c\u521d\u59cb\u5316\u65f6\u63a8\u65ad\u51fa\u6765\u3002\u4e00\u65e6weekDay<\/code>\u88ab\u58f0\u660e\u4e3a\u4e00\u4e2aDaysofaWeek<\/code>\uff0c\u4f60\u53ef\u4ee5\u4f7f\u7528\u4e00\u4e2a\u7f29\u5199\u8bed\u6cd5\uff08.\uff09\u5c06\u5176\u8bbe\u7f6e\u4e3a\u53e6\u4e00\u4e2aDaysofaWeek<\/code>\u7684\u503c\uff1a<\/p>\n
    var weekDay = .THURSDAY \n<\/pre>\n
    \u5f53weekDay<\/code>\u7684\u7c7b\u578b\u5df2\u77e5\u65f6\uff0c\u518d\u6b21\u4e3a\u5176\u8d4b\u503c\u53ef\u4ee5\u7701\u7565\u679a\u4e3e\u540d\u3002\u4f7f\u7528\u663e\u5f0f\u7c7b\u578b\u7684\u679a\u4e3e\u503c\u53ef\u4ee5\u8ba9\u4ee3\u7801\u5177\u6709\u66f4\u597d\u7684\u53ef\u8bfb\u6027\u3002<\/p>\n
    \u679a\u4e3e\u53ef\u5206\u4e3a\u76f8\u5173\u503c\u4e0e\u539f\u59cb\u503c\u3002<\/p>\n
    \u76f8\u5173\u503c\u4e0e\u539f\u59cb\u503c\u7684\u533a\u522b<\/h3>\n\n\n\n\n\n\n\n
    \u76f8\u5173\u503c<\/th>\n\u539f\u59cb\u503c<\/th>\n<\/tr>\n
    \u4e0d\u540c\u6570\u636e\u7c7b\u578b<\/td>\n\u76f8\u540c\u6570\u636e\u7c7b\u578b<\/td>\n<\/tr>\n
     \u5b9e\u4f8b: enum {10,0.8,”Hello”}<\/td>\n \u5b9e\u4f8b: enum {10,35,50}<\/td>\n<\/tr>\n
     \u503c\u7684\u521b\u5efa\u57fa\u4e8e\u5e38\u91cf\u6216\u53d8\u91cf <\/td>\n\u9884\u5148\u586b\u5145\u7684\u503c <\/td>\n<\/tr>\n
     \u76f8\u5173\u503c\u662f\u5f53\u4f60\u5728\u521b\u5efa\u4e00\u4e2a\u57fa\u4e8e\u679a\u4e3e\u6210\u5458\u7684\u65b0\u5e38\u91cf\u6216\u53d8\u91cf\u65f6\u624d\u4f1a\u88ab\u8bbe\u7f6e\uff0c\u5e76\u4e14\u6bcf\u6b21\u5f53\u4f60\u8fd9\u4e48\u505a\u5f97\u65f6\u5019\uff0c\u5b83\u7684\u503c\u53ef\u4ee5\u662f\u4e0d\u540c\u7684\u3002 <\/td>\n \u539f\u59cb\u503c\u59cb\u7ec8\u662f\u76f8\u540c\u7684 <\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
    \n
    \u76f8\u5173\u503c<\/h2>\n
    \u4ee5\u4e0b\u5b9e\u4f8b\u4e2d\u6211\u4eec\u5b9a\u4e49\u4e00\u4e2a\u540d\u4e3a Student \u7684\u679a\u4e3e\u7c7b\u578b\uff0c\u5b83\u53ef\u4ee5\u662f Name \u7684\u4e00\u4e2a\u5b57\u7b26\u4e32\uff08String\uff09\uff0c\u6216\u8005\u662f Mark \u7684\u4e00\u4e2a\u76f8\u5173\u503c\uff08Int\uff0cInt\uff0cInt\uff09\u3002<\/p>\n
    \nimport Cocoa\n\nenum Student{\n    case Name(String)\n    case Mark(Int,Int,Int)\n}\nvar studDetails = Student.Name(\"Runoob\")\nvar studMarks = Student.Mark(98,97,95)\nswitch studMarks {\ncase .Name(let studName):\n    print(\"\u5b66\u751f\u7684\u540d\u5b57\u662f: \\(studName)\u3002\")\ncase .Mark(let Mark1, let Mark2, let Mark3):\n    print(\"\u5b66\u751f\u7684\u6210\u7ee9\u662f: \\(Mark1),\\(Mark2),\\(Mark3)\u3002\")\n}\n<\/pre>\n
    \u4ee5\u4e0a\u7a0b\u5e8f\u6267\u884c\u8f93\u51fa\u7ed3\u679c\u4e3a\uff1a<\/p>\n
    \u5b66\u751f\u7684\u6210\u7ee9\u662f: 98,97,95\u3002\n<\/pre>\n
    \n
    \u539f\u59cb\u503c<\/h2>\n
    \n\u539f\u59cb\u503c\u53ef\u4ee5\u662f\u5b57\u7b26\u4e32\uff0c\u5b57\u7b26\uff0c\u6216\u8005\u4efb\u4f55\u6574\u578b\u503c\u6216\u6d6e\u70b9\u578b\u503c\u3002\u6bcf\u4e2a\u539f\u59cb\u503c\u5728\u5b83\u7684\u679a\u4e3e\u58f0\u660e\u4e2d\u5fc5\u987b\u662f\u552f\u4e00\u7684\u3002<\/p>\n
    \u5728\u539f\u59cb\u503c\u4e3a\u6574\u6570\u7684\u679a\u4e3e\u65f6\uff0c\u4e0d\u9700\u8981\u663e\u5f0f\u7684\u4e3a\u6bcf\u4e00\u4e2a\u6210\u5458\u8d4b\u503c\uff0cSwift\u4f1a\u81ea\u52a8\u4e3a\u4f60\u8d4b\u503c\u3002\n<\/p>\n<\/p>\n
    \u4f8b\u5982\uff0c\u5f53\u4f7f\u7528\u6574\u6570\u4f5c\u4e3a\u539f\u59cb\u503c\u65f6\uff0c\u9690\u5f0f\u8d4b\u503c\u7684\u503c\u4f9d\u6b21\u9012\u589e1\u3002\u5982\u679c\u7b2c\u4e00\u4e2a\u503c\u6ca1\u6709\u88ab\u8d4b\u521d\u503c\uff0c\u5c06\u4f1a\u88ab\u81ea\u52a8\u7f6e\u4e3a0\u3002<\/p>\n
    \nimport Cocoa\n\nenum Month: Int {\n    case January = 1, February, March, April, May, June, July, August, September, October, November, December\n}\n\nlet yearMonth = Month.May.rawValue\nprint(\"\u6570\u5b57\u6708\u4efd\u4e3a: \\(yearMonth)\u3002\")\n<\/pre>\n
    \u4ee5\u4e0a\u7a0b\u5e8f\u6267\u884c\u8f93\u51fa\u7ed3\u679c\u4e3a\uff1a<\/p>\n
    \u6570\u5b57\u6708\u4efd\u4e3a: 5\u3002\n<\/pre>\n<\/p><\/div>\n<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"
    Swift \u679a\u4e3e \u679a\u4e3e\u7b80\u5355\u7684\u8bf4\u4e5f\u662f\u4e00\u79cd\u6570\u636e\u7c7b\u578b\uff0c\u53ea\u4e0d\u8fc7\u662f\u8fd9\u79cd\u6570\u636e\u7c7b\u578b\u53ea\u5305\u542b\u81ea\u5b9a\u4e49\u7684\u7279\u5b9a\u6570\u636e…<\/span><\/p>\n
    Read More<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[26,28],"tags":[74,119],"class_list":["post-535","post","type-post","status-publish","format-standard","hentry","category-mobile","category-swift","tag-ios","tag-swift","zoom-theme-has-thumb"],"_links":{"self":[{"href":"https:\/\/www.puzi7.net\/index.php?rest_route=\/wp\/v2\/posts\/535","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.puzi7.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.puzi7.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.puzi7.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.puzi7.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=535"}],"version-history":[{"count":0,"href":"https:\/\/www.puzi7.net\/index.php?rest_route=\/wp\/v2\/posts\/535\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.puzi7.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=535"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.puzi7.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=535"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.puzi7.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=535"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}