public static void TestThree()
{
Console.WriteLine("【字典、抛出异常、hw[\"City\",\"日期\"]】");
HistoricalWeatherData hw = new HistoricalWeatherData();
hw["Shanghai", DateTime.Now.AddDays(-1)] = 1;
hw["Shanghai", DateTime.Now] = 2;
hw["Beijing", DateTime.Now] = 3;
Console.WriteLine(hw["Shanghai", DateTime.Now.AddDays(-1)]);
Console.WriteLine(hw["Shanghai", DateTime.Now]);
Console.WriteLine(hw["Beijing", DateTime.Now]);
}
private static void SampleFour()
{
var data = new HistoricalWeatherData();
data["Chicago", new DateTime(1970, 6, 6)] = new Measurements
{
HiTemp = 75,
LoTemp = 58,
AirPressure = 30.2
};
var item = data["Chicago", new DateTime(1970, 6, 6)];
Console.WriteLine(item.HiTemp);
item = data["Chicago", new DateTime(1970, 6, 6, 12, 30, 2)];
Console.WriteLine(item.LoTemp);
data["Chicago", new DateTime(1970, 6, 6)] = new Measurements
{
HiTemp = 85,
LoTemp = 38,
AirPressure = 30.2
};
item = data["Chicago", new DateTime(1970, 6, 6)];
Console.WriteLine(item.HiTemp);
item = data["Chicago", new DateTime(1970, 6, 6, 12, 30, 2)];
Console.WriteLine(item.LoTemp);
try
{
item = data["New York", new DateTime(1980, 5, 12)];
Console.WriteLine("Didn't get expected exception");
}
catch (ArgumentOutOfRangeException)
{
}
try
{
item = data["Chicago", new DateTime(1980, 5, 12)];
Console.WriteLine("Didn't get expected exception");
}
catch (ArgumentOutOfRangeException)
{
}
}
