diff --git a/examples/demo/match.js b/examples/demo/match.js
new file mode 100644
index 0000000..fef8e70
--- /dev/null
+++ b/examples/demo/match.js
@@ -0,0 +1,11 @@
+const msg = Ant.match(process.argv[2], {
+  200: 'ok',
+  404: 'not found',
+  [$ >= 500 && $ < 600]: 'server error',
+  [Symbol.default]: code => {
+    console.log('unexpected code');
+    return `unknown value ${code}`;
+  }
+});
+
+console.log(msg);