结构体层面

```
use std::io::{BufWriter, Write};

use std::sync::{Arc, Mutex};

use std::fs::File;

struct sometype{
	pub writer: Arc<Mutex<BufWriter<File>>>, // 文件句柄包装
}
impl sometype{
	pub fn new() -> Self {
		let file = File::create("MultibodyOutput.txt").expect("Unable to create file");

        let writer = Arc::new(Mutex::new(BufWriter::new(file)));
		Self {
		writer,
		}
	}
}
	pub fn write_header(&self) {

        // 按照这样的方式写头文件Time (s), Wind speed (m/s), Power (W), Blade root Mx (N*m),

        // Blade root My (N*m), Blade root Mz (N*m), Blade root Fx (N), Blade root Fy (N), Blade root Fz (N),

        // let header = "Time (s), Blade 1 flapwise tip deflection (m), Blade 1 edgewise tip deflection (m), Blade 1 flapwise tip acceleration (m/s^2), Blade 1 edgewise tip acceleration (m/s^2)";

        // "time", "TipDxc1", "TipDyc1", "TipDzc1", "TipDxb1", "TipDyb1", "TipALxb1", "TipALyb1", "TipALzb1", "TwrTpTDxi", "TwrTpTDyi", "TwrTpTDzi", "YawBrTVxp", "YawBrTVyp", "YawBrTVzp", "YawBrTAxp", "YawBrTAyp", "YawBrTAzp"写文件头

  

        let header_vec = vec![

        "time", "TipDxc1", "TipDyc1", "TipDzc1", "TipDxb1", "TipDyb1",

        "TipALxb1", "TipALyb1", "TipALzb1", "TwrTpTDxi", "TwrTpTDyi",

        "TwrTpTDzi", "YawBrTVxp", "YawBrTVyp", "YawBrTVzp", "YawBrTAxp",

        "YawBrTAyp", "YawBrTAzp"

        ];

        // 将字符串数组连接成一个单独的字符串，每个元素之间用逗号分隔

        let header = header_vec.join(", ");

        let mut writer = self.writer.lock().expect("Failed to acquire lock");

        writeln!(writer, "{}", header).expect("Unable to write header");

    }

  

    /// 写入 Vec<f64> 数据，每个值之间用空格分隔

    pub fn write_data(&self, data: &Vec<f64>) {

        let mut writer = self.writer.lock().expect("Failed to acquire lock");

        // 将 Vec<f64> 数据转换为以空格分隔的字符串

        let data_str = data.iter()

            .map(|v| v.to_string())

            .collect::<Vec<String>>()

            .join(" ");

        // 写入数据行

        writeln!(writer, "{}", data_str).expect("Unable to write data");

    }

```

调用层面
```
m = sometype.new()
somevec = Vec<f64>
m.write_data(&somevec);
```