修改

babel.config.js

@@ -1,7 +1,19 @@
+// [["@vue/app", 
+//         { useBuiltIns: "entry",
+//         polyfills: [
+//             'es6.promise',
+//             'es6.symbol'
+//            ]},
+//     ]],
+// ["@vue/app"]
 module.exports = {
-    presets: [
-        '@vue/app'
-    ],
+    presets: [["@vue/app", 
+        { useBuiltIns: "entry",
+        polyfills: [
+            'es6.promise',
+            'es6.symbol'
+            ]},
+    ]],
     plugins: [
         ['import', {
           libraryName: 'vant',

dist/css/HelpCenter.1c0fbd96.css

@@ -1 +0,0 @@
-.icon[data-v-67669af7]{width:2rem;height:2rem;margin:.5rem auto .05rem}.icon_nodata[data-v-67669af7]{background:url(../img/icon_nodata.81c87d57.png) no-repeat 50%;background-size:contain}.msg[data-v-67669af7]{color:#aaa;font-size:.16rem;text-align:center;line-height:.22rem}.help[data-v-444735df]{min-height:100vh}[data-v-444735df] .van-collapse{margin:.15rem 0}[data-v-444735df] .van-collapse /deep/ .van-cell{color:#1a1a1a;font-size:.17rem;padding:.15rem .16rem}[data-v-444735df] .van-collapse /deep/ .van-collapse-item__content{font-size:.14rem;color:grey}

dist/css/HelpCenter~PeriodExchange.7837a7c8.css → dist/css/HelpCenter.dcfb14bc.css

@@ -1 +1 @@
-.mheader[data-v-61d0e2e4]{height:.44rem;overflow:hidden}.m-nav-header[data-v-61d0e2e4]{position:absolute;left:0;top:0;width:100%;height:.44rem;line-height:.44rem;background-color:#14928a;text-align:center;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;color:#fff}.m-nav-header.fixed[data-v-61d0e2e4]{position:fixed;z-index:99}.m-nav-header .m-nav-bar__title[data-v-61d0e2e4]{max-width:60%;margin:0 auto;color:#fff;font-weight:500;font-size:.16rem}.m-nav-header .m-nav-bar__left[data-v-61d0e2e4],.m-nav-header .m-nav-bar__right[data-v-61d0e2e4]{position:absolute;bottom:0}.m-nav-header .m-nav-bar__left[data-v-61d0e2e4]{left:.12rem}.m-nav-header .m-nav-bar__left .arrow-left[data-v-61d0e2e4]{font-size:.21rem;vertical-align:middle}.m-nav-header .m-nav-bar__right[data-v-61d0e2e4]{right:.12rem}
+.mheader[data-v-61d0e2e4]{height:.44rem;overflow:hidden}.m-nav-header[data-v-61d0e2e4]{position:absolute;left:0;top:0;width:100%;height:.44rem;line-height:.44rem;background-color:#14928a;text-align:center;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;color:#fff}.m-nav-header.fixed[data-v-61d0e2e4]{position:fixed;z-index:99}.m-nav-header .m-nav-bar__title[data-v-61d0e2e4]{max-width:60%;margin:0 auto;color:#fff;font-weight:500;font-size:.16rem}.m-nav-header .m-nav-bar__left[data-v-61d0e2e4],.m-nav-header .m-nav-bar__right[data-v-61d0e2e4]{position:absolute;bottom:0}.m-nav-header .m-nav-bar__left[data-v-61d0e2e4]{left:.12rem}.m-nav-header .m-nav-bar__left .arrow-left[data-v-61d0e2e4]{font-size:.21rem;vertical-align:middle}.m-nav-header .m-nav-bar__right[data-v-61d0e2e4]{right:.12rem}.icon[data-v-67669af7]{width:2rem;height:2rem;margin:.5rem auto .05rem}.icon_nodata[data-v-67669af7]{background:url(../img/icon_nodata.81c87d57.png) no-repeat 50%;background-size:contain}.msg[data-v-67669af7]{color:#aaa;font-size:.16rem;text-align:center;line-height:.22rem}.help[data-v-444735df]{min-height:100vh}[data-v-444735df] .van-collapse{margin:.15rem 0}[data-v-444735df] .van-collapse /deep/ .van-cell{color:#1a1a1a;font-size:.17rem;padding:.15rem .16rem}[data-v-444735df] .van-collapse /deep/ .van-collapse-item__content{font-size:.14rem;color:grey}

dist/css/PeriodExchange.209e2180.css

@@ -0,0 +1 @@
+.mheader[data-v-61d0e2e4]{height:.44rem;overflow:hidden}.m-nav-header[data-v-61d0e2e4]{position:absolute;left:0;top:0;width:100%;height:.44rem;line-height:.44rem;background-color:#14928a;text-align:center;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;color:#fff}.m-nav-header.fixed[data-v-61d0e2e4]{position:fixed;z-index:99}.m-nav-header .m-nav-bar__title[data-v-61d0e2e4]{max-width:60%;margin:0 auto;color:#fff;font-weight:500;font-size:.16rem}.m-nav-header .m-nav-bar__left[data-v-61d0e2e4],.m-nav-header .m-nav-bar__right[data-v-61d0e2e4]{position:absolute;bottom:0}.m-nav-header .m-nav-bar__left[data-v-61d0e2e4]{left:.12rem}.m-nav-header .m-nav-bar__left .arrow-left[data-v-61d0e2e4]{font-size:.21rem;vertical-align:middle}.m-nav-header .m-nav-bar__right[data-v-61d0e2e4]{right:.12rem}.periodExchange[data-v-07afe4e9]{min-height:100vh;position:relative}.periodExchange .logo[data-v-07afe4e9]{width:.5rem;height:.5rem;border-radius:50%;overflow:hidden;margin-right:.13rem}.periodExchange[data-v-07afe4e9] .van-cell{padding:.26rem .16rem .88rem}.periodExchange .exchangeText[data-v-07afe4e9]{font-size:.18rem;color:#1a1a1a}.periodExchange .info[data-v-07afe4e9]{font-size:.16rem;color:grey}.activeList[data-v-07afe4e9]{padding:0 .16rem;margin-top:-.6rem;position:relative;z-index:99}.activeList .active[data-v-07afe4e9]{position:relative;margin-bottom:.15rem;line-height:0}.activeList img[data-v-07afe4e9]{width:100%}.activeList .icon_question[data-v-07afe4e9]{position:absolute;bottom:.06rem;right:.12rem;color:#e94a47;font-size:.18rem}.popupContent[data-v-07afe4e9]{padding:.4rem .16rem .1rem}.pay_btn[data-v-07afe4e9]{background:#14928a;line-height:.45rem;color:#fff;font-size:.18rem;border-radius:.5rem;text-align:center;position:absolute;width:90%;margin-left:5%;bottom:.2rem}

dist/css/PeriodExchange.b4d42fd8.css

@@ -1 +0,0 @@
-.periodExchange[data-v-07afe4e9]{min-height:100vh;position:relative}.periodExchange .logo[data-v-07afe4e9]{width:.5rem;height:.5rem;border-radius:50%;overflow:hidden;margin-right:.13rem}.periodExchange[data-v-07afe4e9] .van-cell{padding:.26rem .16rem .88rem}.periodExchange .exchangeText[data-v-07afe4e9]{font-size:.18rem;color:#1a1a1a}.periodExchange .info[data-v-07afe4e9]{font-size:.16rem;color:grey}.activeList[data-v-07afe4e9]{padding:0 .16rem;margin-top:-.6rem;position:relative;z-index:99}.activeList .active[data-v-07afe4e9]{position:relative;margin-bottom:.15rem;line-height:0}.activeList img[data-v-07afe4e9]{width:100%}.activeList .icon_question[data-v-07afe4e9]{position:absolute;bottom:.06rem;right:.12rem;color:#e94a47;font-size:.18rem}.popupContent[data-v-07afe4e9]{padding:.4rem .16rem .1rem}.pay_btn[data-v-07afe4e9]{background:#14928a;line-height:.45rem;color:#fff;font-size:.18rem;border-radius:.5rem;text-align:center;position:absolute;width:90%;margin-left:5%;bottom:.2rem}

package-lock.json

@@ -4157,6 +4157,11 @@
         "is-symbol": "^1.0.2"
       }
     },
+    "es6-promise": {
+      "version": "4.2.8",
+      "resolved": "https://registry.npmjs.org/es6-promise/-/es6-promise-4.2.8.tgz",
+      "integrity": "sha512-HJDGx5daxeIvxdBxvG2cb9g4tEvwIk3i8+nhX0yGrYmZUzbkdg8QbDevheDB8gd0//uPj4c1EQua8Q+MViT0/w=="
+    },
     "escape-html": {
       "version": "1.0.3",
       "resolved": "https://registry.npm.taobao.org/escape-html/download/escape-html-1.0.3.tgz",

package.json

@@ -13,6 +13,7 @@
     "caniuse": "^0.1.3",
     "caniuse-lite": "^1.0.30001035",
     "core-js": "^2.6.5",
+    "es6-promise": "^4.2.8",
     "install": "^0.13.0",
     "qs": "^6.8.0",
     "vant": "^2.5.4",