是否有可能将NaN值作为空白写入txt文件？

import numpy as np

# 创建一个包含NaN值的数组
arr = np.array([1, 2, np.nan, 4, 5])

# 将NaN值转换为空白
arr[np.isnan(arr)] = ''

# 打开txt文件并写入转换后的数值
with open('output.txt', 'w') as file:
    for value in arr:
        file.write(str(value) + '\n')

import java.io.FileWriter;
import java.io.IOException;

public class Main {
    public static void main(String[] args) {
        double[] arr = {1, 2, Double.NaN, 4, 5};

        try {
            FileWriter writer = new FileWriter("output.txt");
            for (double value : arr) {
                if (Double.isNaN(value)) {
                    writer.write("\n");
                } else {
                    writer.write(String.valueOf(value) + "\n");
                }
            }
            writer.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}