【IntelliJ IDEA 2019.2】java 自写的log打印

声明：（其实，不用关心声明的问题，IDEA会自动补上）

import java.io.FileInputStream;
import java.io.FileOutputStream;

清空日志：

    static public void ClearDstFile(){
        try {
            FileOutputStream fos = new FileOutputStream("log_command.txt", false);
            String str = "";
            fos.write(str.getBytes());
            fos.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

追加日志：

    static public void AppendStringToFile(String format, Object... args) {
        try {
            String str = new Formatter().format(format, args).toString();
            System.out.print(str);
            FileOutputStream fos = new FileOutputStream("log_command.txt", true);
            fos.write(str.getBytes());
            fos.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

附件一：java 读写文件

读：

        try {
            // 创建读取文件的字节流
            FileInputStream fis = new FileInputStream(path);
            System.out.printf("Input file <<%s>> size is %dk\n", path, fis.available()/1024);
            byte[] FileBuf = new byte[fis.available()];
            fis.read(FileBuf);
            fis.close();
        } catch (Exception e) {
            e.printStackTrace();
        }

写：

	try {
		FileOutputStream fos = new FileOutputStream(OutputBinName);
		fos.write(RGB16tab);
		fos.close();
	} catch (Exception e) {
		e.printStackTrace();
	}