06.Rust-浮点型

let price8:f64 = 99;
报错：mismatched types [E0308] expected `f64`, found `i32`

	   let price9 = 18.00;        // 默认是 f64
    let price10:f32 = 8.88;
    let price11:f64 = 168.125;  // 双精度浮点型

    println!("price9 {}", price9); //输出 price9 18
    println!("price10 {}", price10);//输出 price10 8.88
    println!("price11 {}", price11);//输出 price11 168.125

    let price12 =1_000_000;
    println!("price12 {}", price12); //输出 price12 1000000

    let price13 =1_000_000.666_123;
    println!("price13 {}", price13);//输出 price13 1000000.666123