let fileManger = NSFileManager.defaultManager()
do {
let documentPath = NSSearchPathForDirectoriesInDomains(.DocumentDirectory, .UserDomainMask, true)[0]
let filePath = documentPath.stringByAppendingString("/recored.plist")
try fileManger.removeItemAtPath(filePath)
self.clearBlock!()
print(filePath)
textViewSelected = -1
tableView.reloadData()
}catch{
print("error")
}