dev_tool/
hex_util.rs

1// 进制转换工具
2pub struct HexUtil;
3
4impl HexUtil {
5    
6
7    pub fn to_hex(bytes: &[u8]) -> String {
8        let mut hex_str = String::new();
9        for byte in bytes {
10            hex_str += &format!("{:02x}", byte);
11        }
12        hex_str
13    }
14
15}
16
17
18#[cfg(test)]
19mod tests {
20
21    use super::*;
22
23    #[test]
24    fn test_to_hex() {
25        let hex_str = HexUtil::to_hex(&[0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef]);
26        println!("{}", hex_str);
27
28        let bytes: Vec<u8> = "hello, rust!".bytes().collect();
29        let hex_str = HexUtil::to_hex(&bytes);
30        println!("{}", hex_str);
31
32        let bytes = "hello, rust!".to_string().as_bytes().to_vec();
33        let hex_str = HexUtil::to_hex(&bytes);
34        println!("{}", hex_str);
35
36        let str = String::from("hello, rust!");
37        let bytes = str.as_bytes();
38        let hex_str = HexUtil::to_hex(bytes);
39        println!("{}", hex_str);
40    }
41
42}
dev_tool/hex_util.rs

dev_tool/
hex_util.rs
