Rust Practice - Data 1

IC爬虫

Rust Practice - Data 1 [Copy link]

<div class='showpostmsg'>## 1. Data * The {:016b} in println! prints 16-bit binary data, and the number of digits is ignored and padded with zeros on the left; * The {:032b} in println! prints 32-bit binary data, and the number of digits is ignored and padded with zeros on the left; * `std::mem::transmute()` directly interprets an f32 as (converts) a u32, but this forced conversion is considered a confusing behavior in rust, so you need to use the unsafe package when using this conversion. The compiler does not provide memory safety guarantees in this code block: ```rust let a: f32 = 42.42; let frankentype: u32 = unsafe { std::mem::transmute(a) // There is no semicolon in these curly braces, so the result of this expression will be passed to its outer scope; }; ```</div><script> var loginstr = '<div class="locked">To view all the contents of the post, please <a href="/bbs/member.php?mod=logging&action=login" style="color:#e60000" class="loginf">log in</a> or <a href="/bbs/member.php?mod=register_eeworld.php&action=wechat" style="color:#e60000" target="_blank">register</a></div>'; if(parseInt(discuz_uid)==0){ } </script><script type="text/javascript">(function(d,c){var a=d.createElement("script"),m=d.getElementsByTagName("script")[0],eewurl="//counter.eeworld.com.cn/pv/count/";a.src=eewurl+c;m.parentNode.insertBefore(a,m)})(document,523)</script>

lugl4313820

You can print out the results to make the content appear richer.

hellokitty_bean

Remember dot net framework also has the term unsafe, which has a similar meaning...

It is not forbidden, but to explicitly tell the compiler to run unsafe code