\u53d8\u5316<\/a><\/strong>\uff1a<\/p>\n\u6dfb\u52a0\u4e86\u5c06\u6cdb\u578b\u7c7b\u7684\u5b50\u7c7b\u5206\u914d\u7ed9\u7236\u7c7b\u7684\u5143\u7d20\u7684\u529f\u80fd\u3002<\/p>\n
class Foo (T); end\r\n class Bar (T) <Foo (T); end\r\n x = Foo\r\n x = Bar<\/pre>\n\u5728\u5b8f\u4e2d\uff0c\u60a8\u73b0\u5728\u53ef\u4ee5\u4f7f\u7528\u4e0b\u5212\u7ebf\u6765\u5ffd\u7565\u201cfor\u201d\u5faa\u73af\u4e2d\u7684\u503c\u3002<\/p>\n
{% for _, v, i in {1 => 2, 3 => 4, 5 => 6}%}\r\n p {{v + i}}\r\n {% end%}<\/pre>\n\u6dfb\u52a0\u4e86\u201cfile_exists?\u201d \u5b8f\u7684\u65b9\u6cd5\u3002 \u68c0\u67e5\u6587\u4ef6\u662f\u5426\u5b58\u5728\u3002
\n\u6807\u51c6\u5e93\u63d0\u4f9b\u5bf9 128 \u4f4d\u6574\u6570\u7684\u652f\u6301\u3002
\n\u6dfb\u52a0 Indexable::Mutable (T) \u6a21\u5757\u4ee5\u5b9e\u73b0\u5bf9 BitArray \u548c Deque \u7b49\u96c6\u5408\u7684\u6269\u5c55\u64cd\u4f5c\u3002<\/p>\n
ba = BitArray.new (10) # ba = BitArray [0000000000]\r\n ba [0] = true # ba = BitArray [1000000000]\r\n ba.rotate! (- 1) # ba = BitArray [0100000000]<\/pre>\n\u6dfb\u52a0\u4e86 XML :: Node # namespace_definition \u65b9\u6cd5\u4ee5\u4ece XML \u4e2d\u63d0\u53d6\u7279\u5b9a\u7684\u547d\u540d\u7a7a\u95f4\u3002<\/p>\n
IO # write_utf8 \u548c URI.encode \u65b9\u6cd5\u5df2\u88ab\u5f03\u7528\uff0c\u5e94\u66ff\u6362\u4e3a IO # write_string \u548c URI.encode_path\u3002<\/p>\n
\u5bf9 32 \u4f4d x86 \u67b6\u6784\u7684\u652f\u6301\u5df2\u79fb\u81f3\u7b2c\u4e8c\u7ea7\uff08\u4e0d\u518d\u751f\u6210\u73b0\u6210\u7684\u5305\uff09\u3002 \u6b63\u5728\u51c6\u5907\u8f6c\u79fb\u5230\u5bf9 ARM64 \u67b6\u6784\u7684\u7b2c\u4e00\u7ea7\u652f\u6301\u3002<\/p>\n
\u7ee7\u7eed\u4e3a Windows \u5e73\u53f0\u63d0\u4f9b\u5168\u9762\u652f\u6301\u7684\u5de5\u4f5c\u3002 \u6dfb\u52a0\u4e86\u5bf9 Windows \u5957\u63a5\u5b57\u7684\u652f\u6301\u3002<\/p>\n
\u5bf9\u4e8e macOS\uff0c\u6dfb\u52a0\u4e86\u4e00\u4e2a\u901a\u7528\u5305\uff0c\u53ef\u5728\u5177\u6709 x86 \u5904\u7406\u5668\u7684\u8bbe\u5907\u548c\u5177\u6709 Apple M1 \u82af\u7247\u7684\u786c\u4ef6\u4e0a\u8fd0\u884c\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u7f16\u7a0b\u8bed\u8a00 Crystal 1.2 \u5df2\u7ecf\u53d1\u5e03\uff0c\u5176\u5f00\u53d1\u4eba\u5458\u6b63\u8bd5\u56fe\u5c06 Ruby \u8bed\u8a00\u5f00\u53d1\u7684\u4fbf\u5229\u6027\u4e0e C \u8bed …<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[2],"tags":[804],"class_list":["post-10188","post","type-post","status-publish","format-standard","hentry","category-zixun","tag-crystal"],"aioseo_notices":[],"views":593,"_links":{"self":[{"href":"https:\/\/www.linuxmi.com\/wp-json\/wp\/v2\/posts\/10188","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.linuxmi.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.linuxmi.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.linuxmi.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.linuxmi.com\/wp-json\/wp\/v2\/comments?post=10188"}],"version-history":[{"count":4,"href":"https:\/\/www.linuxmi.com\/wp-json\/wp\/v2\/posts\/10188\/revisions"}],"predecessor-version":[{"id":10193,"href":"https:\/\/www.linuxmi.com\/wp-json\/wp\/v2\/posts\/10188\/revisions\/10193"}],"wp:attachment":[{"href":"https:\/\/www.linuxmi.com\/wp-json\/wp\/v2\/media?parent=10188"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.linuxmi.com\/wp-json\/wp\/v2\/categories?post=10188"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.linuxmi.com\/wp-json\/wp\/v2\/tags?post=10188"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
![\"\"](\"https:\/\/www.linuxmi.com\/wp-content\/uploads\/2021\/10\/crystal-1-2.jpg\")
<\/p>\n