在全局app.json上贴入如下代码，前提是加入了编译好的Vant文件的dist文件夹
"usingComponents": {
"van-button": "dist/button",
"van-cell": "dist/cell",
"van-cell-group": "dist/cell-group",
"van-icon": "dist/icon",
"van-image": "dist/image",
"van-row": "dist/row",
"van-col": "dist/col",
"van-popup": "dist/popup",
"van-transition": "dist/transition",
"van-checkbox": "dist/checkbox",
"van-checkbox-group": "dist/checkbox-group",
"van-datetime-picker": "dist/datetime-picker",
"van-field": "dist/field",
"van-picker": "dist/picker",
"van-radio": "dist/radio",
"van-radio-group": "dist/radio-group",
"van-rate": "dist/rate",
"van-search": "dist/search",
"van-slider": "dist/slider",
"van-stepper": "dist/stepper",
"van-switch": "dist/switch",
"van-uploader": "dist/uploader",
"van-action-sheet": "dist/action-sheet",
"van-dialog": "dist/dialog",
"van-dropdown-menu": "dist/dropdown-menu",
"van-dropdown-item": "dist/dropdown-item",
"van-loading": "dist/loading",
"van-notify": "dist/notify",
"van-overlay": "dist/overlay",
"van-swipe-cell": "dist/swipe-cell",
"van-toast": "dist/toast",
"van-circle": "dist/circle",
"van-collapse": "dist/collapse",
"van-collapse-item": "dist/collapse-item",
"van-count-down": "dist/count-down",
"van-divider": "dist/divider",
"van-notice-bar": "dist/notice-bar",
"van-panel": "dist/panel",
"van-progress": "dist/progress",
"van-skeleton": "dist/skeleton",
"van-steps": "dist/steps",
"van-sticky": "dist/sticky",
"van-tag": "dist/tag",
"van-tree-select": "dist/tree-select",
"van-grid": "dist/grid",
"van-grid-item": "dist/grid-item",
"van-index-bar": "dist/index-bar",
"van-index-anchor": "dist/index-anchor",
"van-sidebar": "dist/sidebar",
"van-sidebar-item": "dist/sidebar-item",
"van-nav-bar": "dist/nav-bar",
"van-tab": "dist/tab",
"van-tabs": "dist/tabs",
"van-tabbar": "dist/tabbar",
"van-tabbar-item": "dist/tabbar-item",
"van-area": "dist/area",
"van-card": "dist/card",
"van-submit-bar": "dist/submit-bar",
"van-goods-action": "dist/goods-action",
"van-goods-action-icon": "dist/goods-action-icon",
"van-goods-action-button": "dist/goods-action-button"
}
