1.测试文件IO界面,误操作可能出现crash,需要按照要求操作

Signed-off-by: zhoulisheng1 <zhoulisheng1@huawei.com>

entry/src/main/ets/pages/basicTestFileIOPage.ets

@@ -22,7 +22,8 @@ struct basicTestFileIOPage {
   @State filePath: string = '查看featureAbility路径';
   appFilePath = '';
   appCachePath = '';
-  @State imageFile: string = ''
+  @State imageHint: string = ''
+  @State imageFile: string = '文字提醒'
   @State imageRes: Resource = $r('app.media.pngSample')
   @State imagePixelMap: PixelMap = undefined
   @State normalPixelMap: boolean = false;
@@ -56,9 +57,14 @@ struct basicTestFileIOPage {
             this.appFilePath = data;
 
           })
+        Text(this.imageHint)
         Button('files目录创建Folder1和Folder2 验证statSync mkdirSync')
           .margin({ top: 10 })
           .onClick(() => {
+            if(this.appFilePath == '' || this.appFilePath == null){
+              this.appFilePath = 'appFilePath未取到值,请按顺序从上往下,从左往右依次测试'
+              return
+            }
             console.log('files目录创建Folder1和Folder2 验证statSync mkdirSync')
             FileUtils.getInstance()
               .createFolder(this.appFilePath + '/Folder1');
@@ -69,6 +75,10 @@ struct basicTestFileIOPage {
           .margin({ top: 10 })
           .onClick(() => {
             console.log('将media资源存入Folder1 验证writeSync mkdirSync createStreamSync')
+            if(this.appFilePath == '' || this.appFilePath == null){
+              this.appFilePath = 'appFilePath未取到值,请按顺序从上往下,从左往右依次测试'
+              return
+            }
             globalThis.ImageKnife.getImageKnifeContext().resourceManager
               .getMedia($r('app.media.gifSample').id)
               .then(data => {
@@ -87,6 +97,10 @@ struct basicTestFileIOPage {
           .margin({ top: 10 })
           .onClick(() => {
             console.log('copy:Folder1至Folder2， 验证copyFileSync')
+            if(this.appFilePath == '' || this.appFilePath == null){
+              this.appFilePath = 'appFilePath未取到值,请按顺序从上往下,从左往右依次测试'
+              return
+            }
             let filePath1 = this.appFilePath + '/Folder1/jpgSample.gif';
             let filePath2 = this.appFilePath + '/Folder2/jpgSample.gif';
             FileUtils.getInstance().createFolder(this.appFilePath + '/Folder1')