{"width":"100%","provider_url":"https://hatena.blog","title":"Rust\u306e\u914d\u5217\u64cd\u4f5c\u30e1\u30e2","url":"https://natsutan.hatenablog.com/entry/2018/11/19/182233","author_name":"natsutan","author_url":"https://blog.hatena.ne.jp/natsutan/","version":"1.0","categories":["rust"],"type":"rich","blog_title":"\u3071\u305f\u3078\u306d","image_url":null,"blog_url":"https://natsutan.hatenablog.com/","provider_name":"Hatena Blog","published":"2018-11-19 18:22:33","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fnatsutan.hatenablog.com%2Fentry%2F2018%2F11%2F19%2F182233\" title=\"Rust\u306e\u914d\u5217\u64cd\u4f5c\u30e1\u30e2 - \u3071\u305f\u3078\u306d\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","height":"190","description":"Rust Standard Library Cookbook \u304b\u3089\u3001\u6c17\u306b\u306a\u3063\u305f\u914d\u5217\u306e\u64cd\u4f5c\u3092\u30e1\u30e2\u3057\u307e\u3057\u305f\u3002 \u8981\u7d20\u306e\u53d6\u308a\u3060\u3057 \u914d\u5217\u306e\u8981\u7d20\u3092\u53d6\u308a\u51fa\u3059\u306b\u306fget\u3092\u4f7f\u3044\u307e\u3059\u3002Option\u578b\u3067\u8fd4\u3063\u3066\u304f\u308b\u306e\u3067\u3001Some\u304bunwrap\u3067\u305d\u306e\u5024\u3092\u53d6\u308a\u51fa\u305b\u307e\u3059\u3002[ ]\u3067\u3082\u540c\u3058\u52d5\u304d\u3067\u3059\u3002 [ ]\u3092\u4f7f\u3063\u3066\u914d\u5217\u306e\u9818\u57df\u5916\u306b\u30a2\u30af\u30bb\u30b9\u3057\u305f\u5834\u5408\u306f\u3001\u56de\u5fa9\u3067\u304d\u306a\u3044\u306e\u3067\u5b9f\u884c\u6642\u30a8\u30e9\u30fc\u3068\u306a\u308a\u307e\u3059\u3002 //\u914d\u5217\u8981\u7d20\u306e\u53d6\u308a\u51fa\u3057 let cpus = vec![\"sh\", \"x86\", \"arm\", \"mips\"]; //get\u3067\u53d6\u308a\u51fa\u3059\u3002 let second_cpu = cpus.get(1); if let Some(second_cpu\u2026"}