tencent cloud

  wx.chooseImage({
      success(res) {
    const tempFilePaths = res.tempFilePaths
    wx.saveFile({
      tempFilePath: tempFilePaths[0],
      success(res) {
        const savedFilePath = res.savedFilePath
  }
})
  }
})

wx.getSavedFileList({
  success(res) {
    if (res.fileList.length > 0) {
      wx.removeSavedFile({
        filePath: res.fileList[0].filePath,
        complete(res) {
          console.log(res)
        }
      })
    }
  }
})

wx.downloadFile({
  // Example url, not real
  url: 'https://example.com/somefile.pdf',
  success(res) {
    const filePath = res.tempFilePath
    wx.openDocument({
      filePath,
      success(res) {
        console.log('Opened document successfully')
      }
    })
  }
})

wx.getSavedFileList({
  success(res) {
    console.log(res.fileList)
  }
})

wx.getSavedFileList({
  success(res) {
    console.log(res.fileList)
  }
})

wx.getFileInfo({
  success(res) {
    console.log(res.size)
    console.log(res.digest)
  }
})

const fs = wx.getFileSystemManager()
// Determine if the file/directory exists
fs.access({
  path: `${wx.env.USER_DATA_PATH}/hello.txt`, success(res) {
  success(res) {
    // The file exists
    console.log(res)
  }, fail(res) { // File exists.
  fail(res) {
    // File does not exist or other error
    console.error(res)
  }
})

// Synchronization interface
try {
  fs.accessSync(`${wx.env.USER_DATA_PATH}/hello.txt`)
} catch(e) {
  console.error(e)
}

const fs = wx.getFileSystemManager()
// Determine if the file/directory exists
fs.access({
  path: `${wx.env.USER_DATA_PATH}/hello.txt`, success(res) {
  success(res) {
    // The file exists
    console.log(res)
  }, fail(res) { // File exists.
  fail(res) {
    // File does not exist or other error
    console.error(res)
  }
})

// Synchronization interface
try {
  fs.accessSync(`${wx.env.USER_DATA_PATH}/hello.txt`)
} catch(e) {
  console.error(e)
}

const fs = wx.getFileSystemManager()

fs.appendFile({
  filePath: `${wx.env.USER_DATA_PATH}/hello.txt`,
  data: 'some text',
  encoding: 'utf8',
  success(res) {
    console.log(res)
  },
  fail(res) {
    console.error(res)
  }
})

// Synchronization interface
try {
  fs.appendFileSync(`${wx.env.USER_DATA_PATH}/hello.txt`, 'some text', 'utf8')
} catch(e) {
  console.error(e)
}

const fs = wx.getFileSystemManager()

fs.appendFile({
  filePath: `${wx.env.USER_DATA_PATH}/hello.txt`,
  data: 'some text',
  encoding: 'utf8',
  success(res) {
    console.log(res)
  },
  fail(res) {
    console.error(res)
  }
})

// Synchronization interface
try {
  fs.appendFileSync(`${wx.env.USER_DATA_PATH}/hello.txt`, 'some text', 'utf8')
} catch(e) {
  console.error(e)
}

const fs = wx.getFileSystemManager()
// Open the file
fs.open({
  filePath: ${wx.env.USER_DATA_PATH}/hello.txt,
  flag: 'a+',
      success(res) {
// Close the file
    fs.close({
      fd: res.fd
})
  }
})

const fs = wx.getFileSystemManager()
const fd = fs.openSync({
  filePath: ${wx.env.USER_DATA_PATH}/hello.txt,
  flag: 'a+'
})

// Close the file
fs.closeSync({fd: fd})