{"id":118,"date":"2010-02-21T21:22:00","date_gmt":"2010-02-21T13:22:00","guid":{"rendered":"http:\/\/localhost\/?p=118"},"modified":"2010-02-21T21:22:00","modified_gmt":"2010-02-21T13:22:00","slug":"scala","status":"publish","type":"post","link":"https:\/\/www.shuizilong.com\/wjmzbmr\/?p=118","title":{"rendered":"scala"},"content":{"rendered":"<p> \u6628\u5929\u5341\u5206\u65e0\u804a\u3002\u3002\u770b\u4e86\u770b\u4e00\u4e2a\u6700\u8fd1\u6bd4\u8f83\u6d41\u884c\u7684\u65b0\u8bed\u8a00scala\u3002\u3002\u771f\u662f\u592a\u5f3a\u4e86\u3002\u3002<br \/>scala=Java+\u51fd\u6570\u8bed\u8a00\u3002\u3002<br \/>\u6211\u82b1\u4e86\u4e9b\u65f6\u95f4\u5b66\u4e60\u4e86\u4e00\u4e0b\u3002\u3002<br \/>scala\u6709\u4e00\u4e9b\u5341\u5206\u5f3a\u608d\u7684\u8bed\u8a00\u7279\u6027\u3002\u3002<\/p>\n<p>1.<br \/>\u51fd\u6570\u53ef\u4ee5\u505a\u53c2\u6570\u3002\u3002\u8fd9\u4e2ajava\u662f\u4e0d\u53ef\u4ee5\u7684\u3002\u3002C++\u548cC\u662f\u53ef\u4ee5\u7684\u3002\u4f46\u6ca1\u6709scala\u8fd9\u4e48\u6f02\u4eae\u3002\u3002<br \/>\u6bd4\u5982\u4e00\u4e2a\u51fd\u6570 \u662f\u4eceInt\u5230Int\u7684\uff08\u6bd4\u5982\u4e58\u65b9\u554a\u3002\u3002*2\u554a\u4e4b\u7c7b\u7684\uff09\u3002\u3002<br \/>\u5c31\u662f (Int) =&gt; Int\u3002\u3002<br \/>\u5982\u679c\u662f\u4e8c\u5143\u7684\u3002\u3002\u5c31\u662f<br \/>(Int,Int) =&gt; Int\u3002\u3002<br \/>\u7528=&gt;\u7b26\u53f7\u5341\u5206\u7684\u5f62\u8c61\u3002\u3002<br \/>2. <br \/>a.method(b) &lt;=&gt; a method b<br \/>\u5c31\u662f\u8bf4\u4e00\u5207\u8fd9\u6837\u7684\u51fd\u6570\u90fd\u662f\u64cd\u4f5c\u7b26\u3002\u3002\u6bd4\u5982\u5bf9\u8c61a\u6709\u4e2a\u65b9\u6cd5\u53ebinsert\u3002\u3002<br \/>\u90a3\u4e48 a.insert(x) &lt;=&gt; a insert x<br \/>3.<br \/>\u8ddfJava\u63a5\u8f68\u3002\u3002\u53ef\u4ee5\u4f7f\u7528\u4e00\u5207java\u7684\u5e93\u3002\u3002\u5e76\u4e14\u7f16\u51fa\u6765\u7684\u4e1c\u897f\u53ef\u4ee5\u5728JVM\u4e0a\u8fd0\u884c\u3002\u3002<br \/>\u6bd4Java\u66f4\u5f3a\u5927\u5e76\u4e14\u4ee3\u7801\u8fdc\u8fdc\u7b80\u5355\u4e8eJava\u3002\u3002\u6548\u7387\u5dee\u4e0d\u591a\uff08\u4e00\u6837\u7684\u6076\u5fc3\u3002\u3002\uff09<br \/>4.<br \/>\u5728\u9762\u5411\u5bf9\u8c61\u65b9\u9762\u4e5f\u6bd4java\u7eaf\u7cb9\u3002\u3002java\u4e2d\u57fa\u672c\u7c7b\u578b\u4e0d\u662f\u5bf9\u8c61\u3002\u3002<br \/>scala\u4e2d\u57fa\u672c\u7c7b\u578b\u4e5f\u662f\u5bf9\u8c61\u3002\u662fAny\u7684\u5b50\u7c7b\u3002\u3002<br \/>\u53d1\u4e00\u4e2ascala\u7684\u5feb\u901f\u6392\u5e8f\u7684\u4ee3\u7801\uff1a<br \/>5.<br \/>\u7ee7\u627f\u4e86Java\u7684\u4f18\u826f\u4f20\u7edf\u3002\u3002\u901f\u5ea6\u6162\u7684\u8ddf\u9b3c\u4e00\u6837<img decoding=\"async\" src=\"http:\/\/wjmzbmr.com\/wp-content\/uploads\/pic\/other_site\/img_baidu_j_0012.gif\" \/><br \/>\u51fd\u6570\u5f0f\uff1a<br \/>def sort(xs: Array[Int]): Array[Int] = {<br \/>  if (xs.length &lt;= 1) xs<br \/>  else {<br \/>    val pivot = xs(xs.length \/ 2)<br \/>    Array.concat(<br \/>      sort(xs filter (pivot &gt;)),<br \/>           xs filter (pivot ==),<br \/>      sort(xs filter (pivot &lt;)))<br \/>  }<br \/>}<br \/>\u8fc7\u7a0b\u5f0f\u3002\u3002\u611f\u89c9\u8ddfpascal\u6709\u70b9\u50cf<br \/>def sort(xs: Array[Int]) {<br \/>  def swap(i: Int, j: Int) {<br \/>    val t = xs(i); xs(i) = xs(j); xs(j) = t<br \/>  }<br \/>  def sort1(l: Int, r: Int) {<br \/>    val pivot = xs((l + r) \/ 2)<br \/>    var i = l; var j = r<br \/>    while (i &lt;= j) {<br \/>      while (xs(i) &lt; pivot) i += 1<br \/>      while (xs(j) &gt; pivot) j -= 1<br \/>      if (i &lt;= j) {<br \/>        swap(i, j)<br \/>        i += 1<br \/>        j -= 1<br \/>      }<br \/>    }<br \/>    if (l &lt; j) sort1(l, j)<br \/>    if (j &lt; r) sort1(i, r)<br \/>  }<br \/>  sort1(0, xs.length 1)<br \/>}<br \/>\u8fd8\u6709HelloWorld\u7684\u7a0b\u5e8f\u3002\u3002<br \/>object HelloWorld {<br \/>  def main(args: Array[String]) {<br \/>    println(&quot;Hello, world!&quot;)<br \/>  }<br \/>}\u8fd8\u6709\u4e00\u4e9b\u5c31\u770bscala\u7684\u5b98\u7f51<br \/><a href=\"http:\/\/www.scala-lang.org\/\">http:\/\/www.scala-lang.org\/<\/a> \u4e0a\u9762\u6709\u5f88\u591a\u5b66\u4e60\u8d44\u6599<br \/>\u8fd8\u6709wiki\u4e0a\u7684\u9875\u9762\u3002\u3002 <\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6628\u5929\u5341\u5206\u65e0\u804a\u3002\u3002\u770b\u4e86\u770b\u4e00\u4e2a\u6700\u8fd1\u6bd4\u8f83\u6d41\u884c\u7684\u65b0\u8bed\u8a00scala\u3002\u3002\u771f\u662f\u592a\u5f3a\u4e86\u3002\u3002scala=Java+\u51fd\u6570\u8bed\u8a00\u3002\u3002\u6211\u82b1\u4e86\u4e9b\u65f6\u95f4\u5b66\u4e60\u4e86\u4e00\u4e0b\u3002\u3002scala\u6709\u4e00\u4e9b\u5341\u5206\u5f3a\u608d\u7684\u8bed\u8a00\u7279\u6027\u3002\u3002 1.\u51fd\u6570\u53ef\u4ee5\u505a\u53c2\u6570\u3002\u3002\u8fd9\u4e2ajava\u662f\u4e0d\u53ef\u4ee5\u7684\u3002\u3002C++\u548cC\u662f\u53ef\u4ee5\u7684\u3002\u4f46\u6ca1\u6709scala\u8fd9\u4e48\u6f02\u4eae\u3002\u3002\u6bd4\u5982\u4e00\u4e2a\u51fd\u6570 \u662f\u4eceInt\u5230Int\u7684\uff08\u6bd4\u5982\u4e58\u65b9\u554a\u3002\u3002*2\u554a\u4e4b\u7c7b\u7684\uff09\u3002\u3002\u5c31\u662f (Int) =&gt; Int\u3002\u3002\u5982\u679c\u662f\u4e8c\u5143\u7684\u3002\u3002\u5c31\u662f(Int,Int) =&gt; Int\u3002\u3002\u7528=&gt;\u7b26\u53f7\u5341\u5206\u7684\u5f62\u8c61\u3002\u30022. a.method(b) &lt;=&gt; a method b\u5c31\u662f\u8bf4\u4e00\u5207\u8fd9\u6837\u7684\u51fd\u6570\u90fd\u662f\u64cd\u4f5c\u7b26\u3002\u3002\u6bd4\u5982\u5bf9\u8c61a\u6709\u4e2a\u65b9\u6cd5\u53ebinsert\u3002\u3002\u90a3\u4e48 a.insert(x) &lt;=&gt; a insert x3.\u8ddfJava\u63a5\u8f68\u3002\u3002\u53ef\u4ee5\u4f7f\u7528\u4e00\u5207java\u7684\u5e93\u3002\u3002\u5e76\u4e14\u7f16\u51fa\u6765\u7684\u4e1c\u897f\u53ef\u4ee5\u5728JVM\u4e0a\u8fd0\u884c\u3002\u3002\u6bd4Java\u66f4\u5f3a\u5927\u5e76\u4e14\u4ee3\u7801\u8fdc\u8fdc\u7b80\u5355\u4e8eJava\u3002\u3002\u6548\u7387\u5dee\u4e0d\u591a\uff08\u4e00\u6837\u7684\u6076\u5fc3\u3002\u3002\uff094.\u5728\u9762\u5411\u5bf9\u8c61\u65b9\u9762\u4e5f\u6bd4java\u7eaf\u7cb9\u3002\u3002java\u4e2d\u57fa\u672c\u7c7b\u578b\u4e0d\u662f\u5bf9\u8c61\u3002\u3002scala\u4e2d\u57fa\u672c\u7c7b\u578b\u4e5f\u662f\u5bf9\u8c61\u3002\u662fAny\u7684\u5b50\u7c7b\u3002\u3002\u53d1\u4e00\u4e2ascala\u7684\u5feb\u901f\u6392\u5e8f\u7684\u4ee3\u7801\uff1a5.\u7ee7\u627f\u4e86Java\u7684\u4f18\u826f\u4f20\u7edf\u3002\u3002\u901f\u5ea6\u6162\u7684\u8ddf\u9b3c\u4e00\u6837\u51fd\u6570\u5f0f\uff1adef sort(xs: Array[Int]): Array[Int] = { if (xs.length &lt;= 1) xs else { val pivot = xs(xs.length \/ 2) Array.concat( sort(xs filter (pivot &gt;)), xs filter (pivot ==), sort(xs filter (pivot &lt;))) }}\u8fc7\u7a0b\u5f0f\u3002\u3002\u611f\u89c9\u8ddfpascal\u6709\u70b9\u50cfdef sort(xs: Array[Int]) { def swap(i: [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[10],"tags":[],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/www.shuizilong.com\/wjmzbmr\/index.php?rest_route=\/wp\/v2\/posts\/118"}],"collection":[{"href":"https:\/\/www.shuizilong.com\/wjmzbmr\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.shuizilong.com\/wjmzbmr\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.shuizilong.com\/wjmzbmr\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.shuizilong.com\/wjmzbmr\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=118"}],"version-history":[{"count":0,"href":"https:\/\/www.shuizilong.com\/wjmzbmr\/index.php?rest_route=\/wp\/v2\/posts\/118\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.shuizilong.com\/wjmzbmr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=118"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.shuizilong.com\/wjmzbmr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=118"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.shuizilong.com\/wjmzbmr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=118"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}