{"id":1849,"date":"2025-01-26T10:03:47","date_gmt":"2025-01-26T02:03:47","guid":{"rendered":"https:\/\/www.fanyamin.com\/wordpress\/?p=1849"},"modified":"2025-01-26T10:03:47","modified_gmt":"2025-01-26T02:03:47","slug":"kotlin-%e5%bf%ab%e9%80%9f%e5%85%a5%e9%97%a8","status":"publish","type":"post","link":"https:\/\/www.fanyamin.com\/wordpress\/?p=1849","title":{"rendered":"Kotlin \u5feb\u901f\u5165\u95e8"},"content":{"rendered":"
    \n
  1. \u57fa\u7840\u5b66\u4e60<\/li>\n<\/ol>\n

    1.1 \u5b89\u88c5\u5f00\u53d1\u73af\u5883<\/p>\n

    Kotlin \u7684\u5f00\u53d1\u73af\u5883\u975e\u5e38\u7075\u6d3b\uff1a
    \n\u2022 \u63a8\u8350\u5de5\u5177\uff1aIntelliJ IDEA
    \n\u4e0b\u8f7d\u793e\u533a\u7248\u5373\u53ef\uff1ahttps:\/\/www.jetbrains.com\/idea\/download\/<\/a>
    \n\u2022 \u521b\u5efa\u65b0\u9879\u76ee\u65f6\u9009\u62e9 Kotlin\/JVM \u6a21\u677f\u5373\u53ef\u5f00\u59cb\u3002
    \n\u2022 \u5728\u7ebf\u7f16\u8bd1\u5668\uff1aKotlin Playground
    \n\u65e0\u9700\u5b89\u88c5\u5de5\u5177\uff0c\u76f4\u63a5\u8bbf\u95ee     https:\/\/play.kotlinlang.org\/<\/a> \u5728\u7ebf\u8fd0\u884c Kotlin \u4ee3\u7801\u3002
    \n\u2022 Android \u5f00\u53d1\uff1aAndroid Studio
    \n\u5982\u679c\u76ee\u6807\u662f Android \u5f00\u53d1\uff0c\u53ef\u4ee5\u4f7f\u7528 Android Studio\uff0c\u5b83\u5bf9 Kotlin \u6709\u826f\u597d\u7684\u652f\u6301\u3002<\/p>\n

    1.2 \u5b66\u4e60\u8bed\u8a00\u57fa\u7840<\/p>\n

    Kotlin \u7684\u8bed\u6cd5\u76f4\u89c2\u3001\u7b80\u6d01\uff0c\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u5185\u5bb9\u5feb\u901f\u638c\u63e1\u8bed\u8a00\u57fa\u7840\uff1a
    \n\u2022 Hello, World!<\/p>\n

    fun main() {
    \nprintln("Hello, World!")
    \n}<\/p>\n

    \u2022   \u53d8\u91cf\u58f0\u660e<\/code><\/pre>\n
    val name: String = "Kotlin" \/\/ \u4e0d\u53ef\u53d8\u53d8\u91cf
    \nvar age: Int = 10          \/\/ \u53ef\u53d8\u53d8\u91cf<\/p>\n
    \u2022   \u51fd\u6570<\/code><\/pre>\n
    fun sum(a: Int, b: Int): Int {
    \nreturn a + b
    \n}<\/p>\n
    fun greet(name: String) = "Hello, $name!"<\/p>\n
    \u2022   \u6761\u4ef6\u8868\u8fbe\u5f0f<\/code><\/pre>\n
    val max = if (a > b) a else b<\/p>\n
    \u2022   \u5faa\u73af<\/code><\/pre>\n
    for (i in 1..5) {
    \nprintln(i)
    \n}<\/p>\n
    while (x > 0) {
    \nprintln(x--)
    \n}<\/p>\n
    \u2022   \u96c6\u5408\u64cd\u4f5c<\/code><\/pre>\n
    val numbers = listOf(1, 2, 3)
    \nprintln(numbers.map { it * 2 }) \/\/ [2, 4, 6]<\/p>\n
      \n
    1. \u638c\u63e1 Kotlin \u7684\u6838\u5fc3\u7279\u6027<\/li>\n<\/ol>\n
      2.1 \u7a7a\u5b89\u5168<\/p>\n
      Kotlin \u7684\u7a7a\u5b89\u5168\u673a\u5236\u975e\u5e38\u91cd\u8981\uff1a<\/p>\n
      val name: String? = null \/\/ \u53ef\u7a7a\u7c7b\u578b
      \nprintln(name?.length ?: "No name") \/\/ \u5b89\u5168\u8c03\u7528\u548c Elvis \u64cd\u4f5c\u7b26<\/p>\n
      2.2 \u6570\u636e\u7c7b<\/p>\n
      \u6570\u636e\u7c7b\u7b80\u5316\u4e86 Java \u4e2d\u7684\u6837\u677f\u4ee3\u7801\uff1a<\/p>\n
      data class User(val name: String, val age: Int)<\/p>\n
      val user = User("Alice", 30)
      \nprintln(user) \/\/ User(name=Alice, age=30)<\/p>\n
      2.3 \u6269\u5c55\u51fd\u6570<\/p>\n
      \u6269\u5c55\u51fd\u6570\u53ef\u4ee5\u4e3a\u73b0\u6709\u7c7b\u6dfb\u52a0\u65b0\u529f\u80fd\uff1a<\/p>\n
      fun String.greet(): String = "Hello, $this"<\/p>\n
      println("Kotlin".greet()) \/\/ Hello, Kotlin<\/p>\n
      2.4 \u9ad8\u9636\u51fd\u6570\u548c Lambda<\/p>\n
      Kotlin \u652f\u6301\u51fd\u6570\u5f0f\u7f16\u7a0b\uff0c\u638c\u63e1 Lambda \u548c\u9ad8\u9636\u51fd\u6570\uff1a<\/p>\n
      val square = { x: Int -> x * x }
      \nval numbers = listOf(1, 2, 3)
      \nprintln(numbers.map(square)) \/\/ [1, 4, 9]<\/p>\n
      2.5 \u534f\u7a0b<\/p>\n
      \u534f\u7a0b\u662f Kotlin \u7684\u4eae\u70b9\uff0c\u7528\u4e8e\u5f02\u6b65\u548c\u5e76\u53d1\u7f16\u7a0b\uff1a<\/p>\n
      import kotlinx.coroutines.*<\/p>\n
      fun main() = runBlocking {
      \nlaunch {
      \ndelay(1000L)
      \nprintln("World!")
      \n}
      \nprintln("Hello,")
      \n}<\/p>\n
        \n
      1. \u5b66\u4e60\u8def\u5f84<\/li>\n<\/ol>\n
        3.1 \u521d\u5b66\u8005
        \n\u2022   \u5b98\u65b9\u6587\u6863
        \nKotlin \u5b98\u65b9\u6587\u6863\u662f\u5b66\u4e60\u7684\u6700\u4f73\u8d77\u70b9\uff0c\u6db5\u76d6\u57fa\u7840\u548c\u8fdb\u9636\u5185\u5bb9\uff1ahttps:\/\/kotlinlang.org\/docs\/home.html<\/a>
        \n\u2022   \u4e92\u52a8\u5f0f\u6559\u7a0b
        \n\u4f7f\u7528 Kotlin Playground \u63d0\u4f9b\u7684\u4ea4\u4e92\u5f0f\u6559\u7a0b\uff1a        https:\/\/play.kotlinlang.org\/koans<\/a><\/p>\n
        3.2 \u4e2d\u7ea7\u8fdb\u9636
        \n\u2022   \u9879\u76ee\u5b9e\u8df5
        \n\u2022   \u5f00\u59cb\u4f7f\u7528 Kotlin \u7f16\u5199\u4e00\u4e9b\u7b80\u5355\u7684\u63a7\u5236\u53f0\u5e94\u7528\u7a0b\u5e8f\u3002
        \n\u2022   \u5b66\u4e60\u5982\u4f55\u96c6\u6210\u5e38\u7528\u7684 Java \u5e93\uff08\u5982 Retrofit\u3001OkHttp\uff09\u3002
        \n\u2022   \u6846\u67b6\u5b66\u4e60
        \n\u2022   Android \u5f00\u53d1\uff1a\u901a\u8fc7 Android Studio \u5b66\u4e60 Kotlin \u5728 Android \u4e2d\u7684\u5e94\u7528\u3002
        \n\u2022   \u540e\u7aef\u5f00\u53d1\uff1a\u5b66\u4e60\u4f7f\u7528 Ktor \u6216 Spring Boot \u5f00\u53d1\u540e\u7aef\u5e94\u7528\u3002<\/p>\n
        3.3 \u9ad8\u7ea7\u8fdb\u9636
        \n\u2022   \u534f\u7a0b\uff1a\u6df1\u5165\u5b66\u4e60 Kotlin \u534f\u7a0b\uff0c\u7528\u4e8e\u5e76\u53d1\u548c\u5f02\u6b65\u5904\u7406\u3002
        \n\u2022   Kotlin Multiplatform\uff1a\u63a2\u7d22 Kotlin \u7684\u8de8\u5e73\u53f0\u5f00\u53d1\u80fd\u529b\u3002<\/p>\n
          \n
        1. \u9879\u76ee\u9a71\u52a8\u5b66\u4e60<\/li>\n<\/ol>\n
          4.1 \u5c0f\u9879\u76ee\u5b9e\u8df5
          \n\u2022   \u63a7\u5236\u53f0\u5e94\u7528\u7a0b\u5e8f
          \n\u2022   \u7f16\u5199\u4e00\u4e2a\u7b80\u5355\u7684 Todo \u5e94\u7528\u3002
          \n\u2022   \u5f00\u53d1\u4e00\u4e2a\u8ba1\u7b97\u5668\u6216\u5b57\u7b26\u4e32\u5904\u7406\u5de5\u5177\u3002
          \n\u2022   \u5b89\u5353\u5e94\u7528
          \n\u2022   \u521b\u5efa\u4e00\u4e2a\u8bb0\u4e8b\u672c\u5e94\u7528\u3002
          \n\u2022   \u5f00\u53d1\u4e00\u4e2a\u5929\u6c14\u67e5\u8be2 App\u3002<\/p>\n
          4.2 \u5f00\u6e90\u9879\u76ee
          \n\u2022   \u5728 GitHub \u4e0a\u627e\u4e00\u4e9b Kotlin \u5f00\u6e90\u9879\u76ee\uff0c\u9605\u8bfb\u4ee3\u7801\u5e76\u53c2\u4e0e\u8d21\u732e\u3002<\/p>\n
            \n
          1. \n
            \u53c2\u8003\u8d44\u6e90<\/p>\n
              \n
            1. \u5b98\u65b9\u6587\u6863\uff1ahttps:\/\/kotlinlang.org\/docs\/home.html<\/a><\/li>\n
            2. \u5728\u7ebf\u6559\u7a0b\uff1a
              \n\u2022   Kotlin by JetBrains Academy:               https:\/\/hyperskill.org\/tracks\/18<\/a>
              \n\u2022   CodeLabs:               https:\/\/developer.android.com\/codelabs<\/a><\/li>\n
            3. \u4e66\u7c4d\uff1a
              \n\u2022   \u300aKotlin \u5b9e\u6218\u300b\uff08Kotlin in Action\uff09
              \n\u2022   \u300aKotlin \u7f16\u7a0b\u6743\u5a01\u6307\u5357\u300b<\/li>\n<\/ol>\n<\/li>\n
            4. \n
              \u63d0\u9ad8\u6280\u5de7
              \n\u2022   \u591a\u7ec3\u4e60\uff1a\u6bcf\u5929\u5199\u4ee3\u7801\uff0c\u901a\u8fc7\u5b9e\u8df5\u52a0\u6df1\u7406\u89e3\u3002
              \n\u2022   \u63d0\u95ee\u9898\uff1a\u5728 Kotlin \u5b98\u65b9\u793e\u533a\u6216 Stack Overflow \u4e2d\u5bfb\u6c42\u5e2e\u52a9\u3002
              \n\u2022   \u53c2\u4e0e\u793e\u533a\uff1a\u5173\u6ce8 Kotlin \u7684 GitHub \u4ed3\u5e93\u548c Reddit \u793e\u533a\uff0c\u4e86\u89e3\u6700\u65b0\u52a8\u6001\u3002<\/p>\n<\/li>\n<\/ol>\n
              \u901a\u8fc7\u5b66\u4e60\u57fa\u7840\u8bed\u6cd5\u3001\u5b9e\u8df5\u9879\u76ee\u548c\u501f\u52a9\u8d44\u6e90\uff0c\u4f60\u53ef\u4ee5\u5feb\u901f\u5165\u95e8\u5e76\u638c\u63e1 Kotlin\uff01 \ud83c\udf89<\/p>\n","protected":false},"excerpt":{"rendered":"
              \u57fa\u7840\u5b66\u4e60 1.1 \u5b89\u88c5\u5f00\u53d1\u73af\u5883 Kotlin \u7684\u5f00\u53d1\u73af\u5883\u975e\u5e38\u7075\u6d3b\uff1a \u2022 \u63a8\u8350\u5de5\u5177\uff1aIntelliJ IDEA \u4e0b\u8f7d\u793e\u533a\u7248\u5373\u53ef\uff1ahttps:\/\/www.jetbrains.com\/idea\/download\/ \u2022 \u521b\u5efa\u65b0\u9879\u76ee\u65f6\u9009\u62e9 Kotlin\/JVM \u6a21\u677f\u5373\u53ef\u5f00\u59cb\u3002 \u2022 \u5728\u7ebf\u7f16\u8bd1\u5668\uff1aKotlin Playground \u65e0\u9700\u5b89\u88c5\u5de5\u5177\uff0c\u76f4\u63a5\u8bbf\u95ee https:\/\/play.kotlinlang.org\/ \u5728\u7ebf\u8fd0\u884c Kotlin \u4ee3\u7801\u3002 \u2022 Android \u5f00\u53d1\uff1aAndroid Studio \u5982\u679c\u76ee\u6807\u662f Android \u5f00\u53d1\uff0c\u53ef\u4ee5\u4f7f\u7528 Android Studio\uff0c\u5b83\u5bf9 Kotlin \u6709\u826f\u597d\u7684\u652f\u6301\u3002 1.2 \u5b66\u4e60\u8bed\u8a00\u57fa\u7840 Kotlin \u7684\u8bed\u6cd5\u76f4\u89c2\u3001\u7b80\u6d01\uff0c\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u5185\u5bb9\u5feb\u901f\u638c\u63e1\u8bed\u8a00\u57fa\u7840\uff1a \u2022 Hello, World! fun main() { println("Hello, World!") } \u2022 \u53d8\u91cf\u58f0\u660e val name: String = "Kotlin" \/\/ \u4e0d\u53ef\u53d8\u53d8\u91cf var […] →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":[5],"tags":[],"class_list":["post-1849","post","type-post","status-publish","format-standard","hentry","category-5"],"_links":{"self":[{"href":"https:\/\/www.fanyamin.com\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/1849"}],"collection":[{"href":"https:\/\/www.fanyamin.com\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.fanyamin.com\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.fanyamin.com\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fanyamin.com\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1849"}],"version-history":[{"count":1,"href":"https:\/\/www.fanyamin.com\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/1849\/revisions"}],"predecessor-version":[{"id":1850,"href":"https:\/\/www.fanyamin.com\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/1849\/revisions\/1850"}],"wp:attachment":[{"href":"https:\/\/www.fanyamin.com\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1849"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fanyamin.com\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1849"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fanyamin.com\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1849"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}