private async Task SaveUnMemorizedWords()
{
DataProcesser dataproc = new DataProcesser();
StorageFile file = await ApplicationData.Current.LocalFolder.CreateFileAsync("words.txt", CreationCollisionOption.OpenIfExists);
List <string[]> data = await dataproc.ReadAsync(file);
foreach (string[] wordInformation in todayTask)
{
for (int i = 0; i < data.Count; i++)
{
if (data[i][0] == wordInformation[0])
{
//找到对应的单词
data[i][data[i].Length - 2] = DateTime.Today.ToString();
data[i][data[i].Length - 1] = "0";
break;
}
}
}
memorizedWord.Clear();
await dataproc.WriteAsync(file, data);
data.Clear();
GC.Collect();
}
private void ContentDialog_PrimaryButtonClick(ContentDialog sender, ContentDialogButtonClickEventArgs args)
{
Task readFile = new Task(async(encoderSelectedIndex) => {
DataProcesser dataproc = new DataProcesser();
//打开要导入的文件
List <string[]> data = await dataproc.ReadAsync(file, (DataProcesser.EncoderType)encoderSelectedIndex);
//打开数据文件
StorageFolder folder = ApplicationData.Current.LocalFolder;
//如果存在就打开，不存在就创建
file = await folder.CreateFileAsync("words.txt", CreationCollisionOption.OpenIfExists);
List <string[]> orgData = await dataproc.ReadAsync(file, DataProcesser.EncoderType.UTF_8);
//对比有没有一样的单词
List <string> tempWordIndex = new List <string>();
//tempWordIndex存储所有的英语单词，用于查找
for (int i = 0; i < orgData.Count; i++) //填充tempWordIndex
{
tempWordIndex.Add(orgData[i][0]);
}
foreach (string[] wordInformationForInput in data)
{
//遍历要导入的数据的每一行
int index = tempWordIndex.IndexOf(wordInformationForInput[0]);
//检测英语单词是否相同
//下面检查汉语意思是否有相同
if (index != -1) //若在原数据的index处存在相同的英语单词
{
List <string> orgWordInformationList = new List <string>(orgData[index]);
//首先在orgData中取出该单词的原始数组
foreach (string hansMeaning in wordInformationForInput)
{
//遍历每一个汉语意思
if (orgWordInformationList.IndexOf(hansMeaning) == -1)
{
//如果没有找到相同的
orgWordInformationList.Insert(1, hansMeaning);
//添加到汉语意思
orgWordInformationList[orgWordInformationList.Count - 1] = "0";
//重置剩余天数
}
}
orgData[index] = orgWordInformationList.ToArray();
//存回orgData;
}
else
{
//如果没找到相同的
//添加时间戳和剩余天数
string[] tempWordInformationForInput = new string[wordInformationForInput.Length + 2];
wordInformationForInput.CopyTo(tempWordInformationForInput, 0);
tempWordInformationForInput[wordInformationForInput.Length] = DateTime.Today.ToString();
//加入今天的日期
tempWordInformationForInput[wordInformationForInput.Length + 1] = "0";
//重置剩余天数
orgData.Add(tempWordInformationForInput); //添加到数据表末尾
tempWordIndex.Add(wordInformationForInput[0]); //添加到临时词汇表末尾
}
}
//现在开始存储数据
await dataproc.WriteAsync(file, orgData);
ReadInputFileOk(null, null);
}, Encoder.SelectedIndex);
//Encoder.SelectedIndex传入选择的编码，这破uwp不支持Dispatcher.Invoke()
if (file != null)
{
readFile.Start();
}
}
/// <summary>
/// 刷新今日任务
/// </summary>
/// <returns>返回一个异步Task</returns>
private async Task RefreshAsync()
{
//填充今日任务列表
Random randomNumber = new Random();
DataProcesser dataproc = new DataProcesser();
List <string[]> data = await dataproc.ReadAsync(
await ApplicationData.Current.LocalFolder.CreateFileAsync("words.txt", CreationCollisionOption.OpenIfExists)
);
foreach (string[] wordInformation in data)
{
DateTime formerMemorizeDate = DateTime.Parse(wordInformation[wordInformation.Length - 2]);
TimeSpan span = DateTime.Today - formerMemorizeDate;
if (span.Days >= Convert.ToInt16(wordInformation[wordInformation.Length - 1]))
{
//如果大于设定的时间间隔，添加到今日任务
string[] oneWord = new string[6];
//[单词],[汉语意思]x4,[正确选项]
oneWord[0] = wordInformation[0];
int correctSelection = randomNumber.Next(1, 5);
//生成正确选项的序号
oneWord[5] = correctSelection.ToString();
//将正确选项的序号存入
oneWord[correctSelection] = wordInformation[randomNumber.Next(1, wordInformation.Length - 2)];
//将正确答案存入正确选项对应的序号
for (int i = 1; i < 5; i++)
{
if (i != correctSelection)
{
//在其他选项填入随机的汉语意思
bool randomWordOK = false;
int randomWordIndex;
while (!randomWordOK)
{
randomWordIndex = randomNumber.Next(0, data.Count);
//随机到一个单词组
if (data[randomWordIndex][0] != oneWord[0])
{
//随机的单词不是该单词本身
int randomWordElementCount = data[randomWordIndex].Length - 2;
for (int j = 1; j < randomWordElementCount; j++)
{
int randomHansIndex = randomNumber.Next(1, randomWordElementCount);
if (data[randomWordIndex][j] != oneWord[correctSelection])
{
//随机的汉语意思与正确汉语的意思不同
oneWord[i] = data[randomWordIndex][j];
randomWordOK = true;
break;
}
}
}
//多次随机直到随机到不同的单词
}
}
}
todayTask.Add(oneWord);
}
}
//填充完毕
//设置保存已背会单词的线程
Task saveWords = new Task(async() => {
await Task.Delay(20000);
while (todayTask.Count != 0)
{
//仍旧有今日任务，继续循环
await Task.Delay(20000);
if (memorizedWord.Count >= 10)
{
await SaveMemorizedWords();
}
}
//否则保存一次，退出线程
await SaveMemorizedWords();
});
saveWords.Start();
//设置UI
todayTaskCount = todayTask.Count;
await Sum.Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, () => {
this.Sum.Text = "共: " + data.Count.ToString();
this.Today.Text = "今日: 0 / " + todayTaskCount.ToString();
});
GC.Collect();
}
