Rust的几种字符串

    let s1 : &str = "hello";
    let s2 : String = "hello".to_string();
    let s3 : &[u8] = &[104, 101, 108, 108];
    let s4 : &[u8; 4] = &[104, 101, 108, 109];
    let s5 : Vec = vec![104, 101, 108, 10];
    let s6 : &u8 = &104;
    println!("{:?}", s1);
    println!("{:?}", s2);
    println!("{:?}", s3);
    println!("{:?}", s4);
    println!("{:?}", s5);
    println!("{:?}", s6);

运行结果

"hello"
"hello"
[104, 101, 108, 108]
[104, 101, 108, 109]
[104, 101, 108, 10]
104

结构分析：