{"author_name":"kagasu","blog_url":"https://kagasu.hatenablog.com/","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fkagasu.hatenablog.com%2Fentry%2F2024%2F01%2F31%2F001852\" title=\"Rust \u57fa\u672c\u6587\u6cd5\u30e1\u30e2 - \u5099\u5fd8\u9332\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","provider_name":"Hatena Blog","url":"https://kagasu.hatenablog.com/entry/2024/01/31/001852","image_url":null,"blog_title":"\u5099\u5fd8\u9332","published":"2024-01-31 00:18:52","author_url":"https://blog.hatena.ne.jp/kagasu/","width":"100%","categories":["Rust"],"provider_url":"https://hatena.blog","title":"Rust \u57fa\u672c\u6587\u6cd5\u30e1\u30e2","version":"1.0","type":"rich","height":"190","description":"fn say_hello(name: String) { println!(\"hello {name} !!!\"); } fn sum(a: i32, b: i32) -> i32 { return a + b; } fn main() { println!(\"Hello, world!\"); println!(\"aaa {}\", \"bbb\"); let mut a: i32 = 1; println!(\"a is :{}\", a); a = 2; println!(\"a is :{}\", a); let a: &str = \"aaa\"; let a1: i32 = 1; let a2: u3\u2026"}