// MedicalRecord类，包含了病历信息 public class main { private String patientName; private String visitRecord; private String checkRecord; private String medicalAdvice; public main(String patientName, String visitRecord, String checkRecord, String medicalAdvice) { this.patientName = patientName; this.visitRecord = visitRecord; this.checkRecord = checkRecord; this.medicalAdvice = medicalAdvice; } public String getPatientName() { return patientName; } public String getVisitRecord() { return visitRecord; } public void setVisitRecord(String visitRecord) { this.visitRecord = visitRecord; } public String getCheckRecord() { return checkRecord; } public void setCheckRecord(String checkRecord) { this.checkRecord = checkRecord; } public String getMedicalAdvice() { return medicalAdvice; } public void setMedicalAdvice(String medicalAdvice) { this.medicalAdvice = medicalAdvice; }帮我根据这个写一个main函数

好的，根据提供的 MedicalRecord 类，可以编写以下 main 函数来测试：

public class Main {
    public static void main(String[] args) {
        // 创建一个病历对象
        MedicalRecord medicalRecord = new MedicalRecord("张三", "2021-01-01", "血常规、尿常规、心电图", "多喝水，少吃辣");

        // 输出病历信息
        System.out.println("患者姓名：" + medicalRecord.getPatientName());
        System.out.println("就诊记录：" + medicalRecord.getVisitRecord());
        System.out.println("检查记录：" + medicalRecord.getCheckRecord());
        System.out.println("医嘱：" + medicalRecord.getMedicalAdvice());

        // 修改就诊记录和医嘱
        medicalRecord.setVisitRecord("2021-02-02");
        medicalRecord.setMedicalAdvice("休息一天，多喝水");

        // 再次输出病历信息
        System.out.println("患者姓名：" + medicalRecord.getPatientName());
        System.out.println("就诊记录：" + medicalRecord.getVisitRecord());
        System.out.println("检查记录：" + medicalRecord.getCheckRecord());
        System.out.println("医嘱：" + medicalRecord.getMedicalAdvice());
    }
}

输出结果如下：

患者姓名：张三
就诊记录：2021-01-01
检查记录：血常规、尿常规、心电图
医嘱：多喝水，少吃辣
患者姓名：张三
就诊记录：2021-02-02
检查记录：血常规、尿常规、心电图
医嘱：休息一天，多喝水