diff --git a/src/mock/chart/G2Line.js b/src/mock/chart/G2Line.js
index 874a6a55..696b2284 100644
--- a/src/mock/chart/G2Line.js
+++ b/src/mock/chart/G2Line.js
@@ -4,10 +4,18 @@ const r = (add = 0) => {
   return Math.round(Math.random() * 100) + add
 }
 
+const returnMaker = (data = []) => {
+  return {
+    code: 0,
+    msg: '请求成功',
+    data
+  }
+}
+
 Mock.mock('/api/chart/G2Line', 'post', ({body, type, url}) => {
   const _body = JSON.parse(body)
-  switch (_body.code) {
-    case 1: {
+  switch (_body.type) {
+    case 'base': {
       let lastValue = 0
       const year = ['1991', '1992', '1993', '1994', '1995', '1996', '1997', '1998', '1999']
       const data = year.map(y => ({
@@ -19,13 +27,9 @@ Mock.mock('/api/chart/G2Line', 'post', ({body, type, url}) => {
         return e
       })
       lastValue = 0
-      return {
-        code: 0,
-        msg: '请求成功',
-        data
-      }
+      return returnMaker(data)
     }
-    case 2: {
+    case 'step': {
       const month = ['1月', '2月', '3月', '4月', '5月', '6月', '7月', '8月', '9月', '10月', '11月', '12月']
       const data = month.map(y => ({
         month: y,
@@ -34,11 +38,7 @@ Mock.mock('/api/chart/G2Line', 'post', ({body, type, url}) => {
         e.value = r()
         return e
       })
-      return {
-        code: 0,
-        msg: '请求成功',
-        data
-      }
+      return returnMaker(data)
     }
     default:
       return {}
diff --git a/src/pages/demo/chart/index/index.vue b/src/pages/demo/chart/index/index.vue
index fedabb75..3994cae6 100644
--- a/src/pages/demo/chart/index/index.vue
+++ b/src/pages/demo/chart/index/index.vue
@@ -29,12 +29,12 @@ export default {
     return {
       chart: [
         {
-          api: {url: '/api/chart/G2Line', data: {code: 1}},
+          api: {url: '/api/chart/G2Line', data: {type: 'base'}},
           data: [],
           padding: [30, 40, 50, 50]
         },
         {
-          api: {url: '/api/chart/G2Line', data: {code: 2}},
+          api: {url: '/api/chart/G2Line', data: {type: 'step'}},
           data: [],
           padding: [30, 40, 50, 50]
         }