fixed 1c1c09cf from https://gitee.com/yydwfzysy/docs/pulls/22622

访问控制资料问题修复
Signed-off-by: Nzhouyan <zhouyan160@huawei.com>
Change-Id: I9b1fbe8693356a610d8f75f1a4eca8dc4b1c248c

zh-cn/application-dev/security/accesstoken-guidelines.md

@@ -176,10 +176,10 @@
    
    async function checkAccessToken(permission: Permissions): Promise<abilityAccessCtrl.GrantStatus> {
      let atManager = abilityAccessCtrl.createAtManager();
-     let grantStatus: abilityAccessCtrl.GrantStatus;
+     let grantStatus: abilityAccessCtrl.GrantStatus = abilityAccessCtrl.GrantStatus.PERMISSION_DENIED;
    
      // 获取应用程序的accessTokenID
-     let tokenId: number;
+     let tokenId: number = 0;
      try {
        let bundleInfo: bundleManager.BundleInfo = await bundleManager.getBundleInfoForSelf(bundleManager.BundleFlag.GET_BUNDLE_INFO_WITH_APPLICATION);
        let appInfo: bundleManager.ApplicationInfo = bundleInfo.appInfo;