分离js代码

public/game.js

@@ -0,0 +1,14 @@
+const client = io()
+
+client.on('role', (name) => {
+    role.innerText = name
+})
+
+client.on('player', (player) => {
+    gameButton.classList = player
+    gameButton.innerText = player == 'player1' ? '玩家1' : '玩家2'
+})
+
+gameButton.onclick = () => {
+    client.emit('click')
+}

public/index.html

@@ -5,7 +5,6 @@
     <meta charset="UTF-8">
     <meta http-equiv="X-UA-Compatible" content="IE=edge">
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
-    <link rel="shortcut icon" href="data:" type="image/x-icon">
     <title>陆战棋游戏</title>
     <style>
         button {
@@ -30,22 +29,7 @@
     <h2 id="role"></h2>
     <button id="gameButton">玩家1</button>
     <script src="/socket.io/socket.io.min.js"></script>
-    <script>
-        const client = io()
-
-        client.on('role', (name) => {
-            role.innerText = name
-        })
-
-        client.on('player', (player) => {
-            gameButton.classList = player
-            gameButton.innerText = player == 'player1' ? '玩家1' : '玩家2'
-        })
-
-        gameButton.onclick = () => {
-            client.emit('click')
-        }
-    </script>
+    <script src="game.js"></script>
 </body>
 
 </html>