{"image_url":null,"author_url":"https://blog.hatena.ne.jp/plarail_hangout/","blog_title":"Engineering Tech Dojo","title":"Rust\u306e\u30d5\u30a1\u30a4\u30eb\u8aad\u307f\u66f8\u304d\u5165\u9580\uff1afs\u30fbBufReader\u30fbBufWriter\u306e\u4f7f\u3044\u65b9","height":"190","width":"100%","provider_url":"https://hatena.blog","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Ftech.fun-toy-life.com%2Fentry%2F2026%2F06%2F03%2F195412\" title=\"Rust\u306e\u30d5\u30a1\u30a4\u30eb\u8aad\u307f\u66f8\u304d\u5165\u9580\uff1afs\u30fbBufReader\u30fbBufWriter\u306e\u4f7f\u3044\u65b9 - Engineering Tech Dojo\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","blog_url":"https://tech.fun-toy-life.com/","version":"1.0","provider_name":"Hatena Blog","author_name":"plarail_hangout","published":"2026-06-03 19:54:12","categories":["Rust"],"url":"https://tech.fun-toy-life.com/entry/2026/06/03/195412","description":"Rust\u306e\u30d5\u30a1\u30a4\u30eb\u8aad\u307f\u66f8\u304d\u5165\u9580\uff1afs\u30fbBufReader\u30fbBufWriter\u306e\u4f7f\u3044\u65b9 \u306f\u3058\u3081\u306b Rust\u3067\u30d5\u30a1\u30a4\u30eb\u3092\u8aad\u307f\u66f8\u304d\u3059\u308b\u306b\u306f std::fs \u30e2\u30b8\u30e5\u30fc\u30eb\u3092\u4f7f\u3044\u307e\u3059\u3002\u30b7\u30f3\u30d7\u30eb\u306a\u4e00\u62ec\u8aad\u307f\u8fbc\u307f\u304b\u3089\u3001\u5927\u304d\u306a\u30d5\u30a1\u30a4\u30eb\u3092\u52b9\u7387\u7684\u306b\u51e6\u7406\u3059\u308b\u30d0\u30c3\u30d5\u30a1\u30ea\u30f3\u30b0\u307e\u3067\u307e\u3068\u3081\u307e\u3059\u3002 \u30d5\u30a1\u30a4\u30eb\u3092\u8aad\u3080 \u5168\u4f53\u3092\u6587\u5b57\u5217\u3068\u3057\u3066\u8aad\u3080\uff08\u6700\u3082\u30b7\u30f3\u30d7\u30eb\uff09 use std::fs; fn main() { let content = fs::read_to_string(\"hello.txt\").unwrap(); println!(\"{}\", content); } \u5c0f\u301c\u4e2d\u30b5\u30a4\u30ba\u306e\u30d5\u30a1\u30a4\u30eb\u306a\u3089\u3053\u308c\u3067\u5341\u5206\u3067\u3059\u3002\u30a8\u30e9\u30fc\u51e6\u7406\u3092\u52a0\u3048\u308b\u5834\u5408\u2026","type":"rich"}