# IO 文件管理

  // publicDownloads 通过foxsdk.io.requestFileSystem(foxsdk.io.PUBLIC_DOWNLOADS)获取
  // foxsdk.io.requestFileSystem(foxsdk.io.PUBLIC_DOWNLOADS, ret=>{console.log(ret.root.fullPath)})
  // let publicDownloads = 
  let url = publicDownloads + '202001081458.txt';
  foxsdk.io.convertAbsoluteFileSystem(url, path => {
    console.log('path: ' + path);
  },ret => {
    // sdkError
  });

  let path = '_downloads/202001081458.txt';
  foxsdk.io.convertLocalFileSystemURL(path, url => {
    console.log('url: ' + url);
  },ret => {
    // sdkError
  });

  foxsdk.io.pickFile(fs => {
    // fs.name
    // fs.payload.path
  },ret => {
    // SdkError
  });

  foxsdk.io.moveToFileApp(url,fs => {
    //  
    // 
  },ret => {
    // SdkError
  });

  foxsdk.io.requestFileSystem(type, fs => {
    // fs.name
    // fs.root.fullPath
  },ret => {
    // SdkError
  });

  // publicDownloads 通过foxsdk.io.requestFileSystem(foxsdk.io.PUBLIC_DOWNLOADS)获取
  // let publicDownloads = 
  foxsdk.io.meteringCacheRange([foxsdk.io.PRIVATE_DOC], path => {
    console.log('path: ' + path);
  },ret => {
    // sdkError
  });

  // publicDownloads 通过foxsdk.io.requestFileSystem(foxsdk.io.PUBLIC_DOWNLOADS)获取
  // let publicDownloads = 
  foxsdk.io.cachesSize(path => {
    console.log('path: ' + path);
  },ret => {
    // sdkError
  });

  // publicDownloads 通过foxsdk.io.requestFileSystem(foxsdk.io.PUBLIC_DOWNLOADS)获取
  // let publicDownloads = 
  foxsdk.io.cachesClear(path => {
    console.log('path: ' + path);
  },ret => {
    // sdkError
  });

  let url = '_downloads/';
  foxsdk.io.resolveLocalFileSystemURL(url, entry => {
    entry.getDirectory('test/', { create: true }, entry1 => {
      // 返回test目录操作对象
    }, err => {
      // SdkError
    })
  },ret => {
    // SdkError
  });

  let url = '_downloads/';
  foxsdk.io.resolveLocalFileSystemURL(url, entry => {
    entry.getFile('test.txt', { create: true }, entry1 => {
      // 返回test.txt文件操作对象
    }, err => {
      // SdkError
    })
  },ret => {
    // SdkError
  });

  let url = '_downloads/202001091600.txt';
  foxsdk.io.resolveLocalFileSystemURL(url, entry => {
    entry.moveTo('_doc/','202001091601.txt', entry => {
      // Entry 文件或目录操作对象
    }, err => {
      // SdkError
    })
  },ret => {
    // SdkError
  });

  let url = '_downloads/202001081458.txt';
  foxsdk.io.resolveLocalFileSystemURL(url, entry => {
    entry.copyTo('_doc/','202001081600.txt', entry => {
      // Entry 文件或目录操作对象
    }, err => {
      // SdkError
    })
  },ret => {
    // SdkError
  });

  let url = '_doc/202001091601.txt';
  foxsdk.io.resolveLocalFileSystemURL(url, entry => {
    entry.remove(ret => {
      // success SdkError
    }, err => {
     // fail SdkError
    })
  },ret => {
    // fail SdkError
  });

  let url = '_downloads/test/t1.txt';
  foxsdk.io.resolveLocalFileSystemURL(url, entry => {
    entry.getMetadata(ret => {
      console.log('getFileDigestInfo: ' + JSON.stringify(ret));
    }, err => {
      // SdkError
    })
  },ret => {
    // SdkError
  });

  let url = '_downloads/';
  foxsdk.io.getSrc(url, entry => {
    entry.getSrc(ret => {
      console.log('getSrc: ' + JSON.stringify(ret));
    }, err => {
      // SdkError
    })
  },ret => {
    // SdkError
  });

  let url = '_downloads/';
  foxsdk.io.resolveLocalFileSystemURL(url, entry => {
    entry.getFileListMetadata(ret => {
      console.log('getFileDigestInfo: ' + JSON.stringify(ret));
    }, err => {
      // SdkError
    })
  },ret => {
    // SdkError
  });

  let url = '_downloads/202001081458.txt';
  foxsdk.io.resolveLocalFileSystemURL(url, entry => {
    entry.getFileDigestInfo('md5', ret => {
      console.log('getFileDigestInfo: ' + JSON.stringify(ret));
    }, err => {
      // SdkError
    })
  },ret => {
    // SdkError
  });