diff --git a/readme.md b/readme.md
index a15e280..81f803a 100644
--- a/readme.md
+++ b/readme.md
@@ -4,4 +4,4 @@
 
 所以这里并没有什么好康的东西。
 
-
+里边的变量命名都是作业的设定，别在意 ：）
diff --git a/20200311.cpp b/test1/20200311-2.cpp
similarity index 100%
rename from 20200311.cpp
rename to test1/20200311-2.cpp
diff --git a/test1/20220313-3.cpp b/test1/20220313-3.cpp
new file mode 100644
index 0000000..3677d40
--- /dev/null
+++ b/test1/20220313-3.cpp
@@ -0,0 +1,97 @@
+#include <iostream>
+#include <cmath>
+
+using namespace std;
+
+class CStudent {
+public:
+    int getId() const;
+
+    void setId(int id);
+
+    int getScore() const;
+
+    void setScore(int score);
+
+    CStudent(int id, string name, int score);
+
+    void setName(const string &name);
+
+    const string &getName() const;
+
+    CStudent(const CStudent &source);
+
+    CStudent();
+
+private:
+    int id = 0;
+    string name;
+    int score = 0;
+};
+
+int CStudent::getId() const {
+    return id;
+}
+
+void CStudent::setId(int id) {
+    CStudent::id = id;
+}
+
+void CStudent::setName(const string &name) {
+    CStudent::name = name;
+}
+
+const string &CStudent::getName() const {
+    return name;
+}
+
+int CStudent::getScore() const {
+    return score;
+}
+
+void CStudent::setScore(int score) {
+    CStudent::score = score;
+}
+
+CStudent::CStudent(int id, string name, int score) : id(id), name(name), score(score) {}
+
+CStudent::CStudent() : id(0), name("name"), score(0) {}
+
+CStudent::CStudent(const CStudent &source) {
+    id = source.id;
+    name = source.name;
+    score = source.score;
+}
+
+#include <vector>
+
+int main() {
+    vector<CStudent> students;
+
+    int studentAmount = 0;
+    cout << "Enter the amount of students: ";
+    cin >> studentAmount;
+
+    int maxScore = 0;
+    for (int i = 0; i < studentAmount; ++i) {
+        int id = 0;
+        int score = 0;
+        string name = "";
+
+        cin >> id >> name >> score;
+        CStudent student(id, name, score);
+        students.push_back(student);
+
+        if (maxScore < score) {
+            maxScore = score;
+        }
+    }
+
+    for (const CStudent &student: students) {
+        if (student.getScore() == maxScore) {
+            cout << "id: " << student.getId()
+                 << ", name: " << student.getName()
+                 << ", score: " << student.getScore() << endl;
+        }
+    }
+}
diff --git a/test1/20220317-4.cpp b/test1/20220317-4.cpp
new file mode 100644
index 0000000..01f6f1b
--- /dev/null
+++ b/test1/20220317-4.cpp
@@ -0,0 +1,38 @@
+#include <iostream>
+#include <cmath>
+
+using namespace std;
+
+class date {
+public:
+    date(const char *NewD);
+
+    date(int NewY, int NewM, int NewD);
+
+    date();
+
+    void show();
+
+private:
+    int y, m, d;
+};
+
+date::date(int NewY, int NewM, int NewD) : y(NewY), m(NewM), d(NewD) {}
+
+date::date(const char *NewD) {
+    sscanf(NewD, "%d-%d-%d", &y, &m, &d);
+}
+
+void date::show() {
+    cout << y << '-' << m << '-' << d << endl;
+}
+
+date::date() : y(1970), m(1), d(1){}
+
+int main() {
+    date d1, d2(2011, 3, 8), d3("2011-03-19");
+
+    d1.show();
+    d2.show();
+    d3.show();
+}