Feature/english (#381)

* perf[navbar]: set langSelect to component && refine errorLog component

* feat[login]:add 18n to login form

* fix[pagination]: fixed when selected page-sizes

* perf[i18n]:dashboard document svg permission

* perf[charts]: perf effect

* perf[i18n]:excel && zip

* perf[i18n]: table && errorLog && theme

* perf[i18n]: components

* perf[i18n]: direct use $t

* perf[i18n]: complex-table

* update README.md

* update README.md 📘

* perf[i18n]: refine code comments

src/permission.js

@@ -1,21 +1,21 @@
 import router from './router'
 import store from './store'
-import NProgress from 'nprogress' // Progress 进度条
-import 'nprogress/nprogress.css'// Progress 进度条样式
-import { getToken } from '@/utils/auth' // 验权
+import NProgress from 'nprogress' // progress bar
+import 'nprogress/nprogress.css'// progress bar style
+import { getToken } from '@/utils/auth' // getToken from cookie
 import { Message } from 'element-ui'
 
 // permissiom judge
 function hasPermission(roles, permissionRoles) {
-  if (roles.indexOf('admin') >= 0) return true // admin权限 直接通过
+  if (roles.indexOf('admin') >= 0) return true // admin permission passed directly
   if (!permissionRoles) return true
   return roles.some(role => permissionRoles.indexOf(role) >= 0)
 }
 
-const whiteList = ['/login', '/authredirect']// 不重定向白名单
+const whiteList = ['/login', '/authredirect']// no redirect whitelist
 
 router.beforeEach((to, from, next) => {
-  NProgress.start() // 开启Progress
+  NProgress.start() // start progress bar
   if (getToken()) { // 判断是否有token
     if (to.path === '/login') {
       next({ path: '/' })
@@ -26,11 +26,11 @@ router.beforeEach((to, from, next) => {
           const roles = res.data.role
           store.dispatch('GenerateRoutes', { roles }).then(() => { // 生成可访问的路由表
             router.addRoutes(store.getters.addRouters) // 动态添加可访问路由表
-            next({ ...to, replace: true }) // hack方法 确保addRoutes已完成 ,replace: true so the navigation will not leave a history record
+            next({ ...to, replace: true }) // hack方法 确保addRoutes已完成 ,set the replace: true so the navigation will not leave a history record
           })
         }).catch(() => {
           store.dispatch('FedLogOut').then(() => {
-            Message.error('验证失败,请重新登录')
+            Message.error('Verification failed, please login again')
             next({ path: '/login' })
           })
         })
@@ -56,5 +56,5 @@ router.beforeEach((to, from, next) => {
 })
 
 router.afterEach(() => {
-  NProgress.done() // 结束Progress
+  NProgress.done() // finish progress bar
 })