diff --git a/MainActivity.java b/MainActivity.java
new file mode 100644
index 0000000..9f81b8b
--- /dev/null
+++ b/MainActivity.java
@@ -0,0 +1,37 @@
+package com.example.meetyou;
+
+import androidx.appcompat.app.AppCompatActivity;
+
+import android.content.Intent;
+import android.os.Bundle;
+import android.view.View;
+import android.widget.Button;
+
+public class MainActivity extends AppCompatActivity {
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_main);//xml文件和java文件一一对应9,
+        Button button1 = (Button)findViewById(R.id.register);
+        button1.setOnClickListener(new View.OnClickListener()
+        {
+            @Override
+            public void onClick(View view)
+            {
+                Intent intent = new Intent(MainActivity.this,register.class);
+                startActivity(intent);
+            }
+        });
+        Button button2 = (Button)findViewById(R.id.login);
+        button2.setOnClickListener(new View.OnClickListener()
+        {
+            @Override
+            public void onClick(View view)
+            {
+                Intent intent = new Intent(MainActivity.this,login.class);
+                startActivity(intent);
+            }
+        });
+    }
+}
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