diff --git a/index.js b/index.js
index 2d7e6834fb6366b3120c7a37cc5f637bc4a33928..db0b75c97b4360244e90188d3507410642455849 100644
--- a/index.js
+++ b/index.js
@@ -1 +1,17 @@
-console.log("欢迎来到 InsCode");
\ No newline at end of file
+function equalToken(model) {
+    let unitPrice = 1/1000000; // 1token 是多少钱
+    if (model.currency === 'USD') {
+      const exchangeRate = 7;
+      return (model.price / unitPrice) / exchangeRate;
+    }
+    return model.price / unitPrice;
+}
+
+const model = {
+    price: 0.0014,
+    currency: 'USD'
+}
+
+const token = equalToken(model);
+
+console.log(token);
\ No newline at end of file