C# 将字符串转换成整形、double或者date

C# 将字符串转换成整形、double或者date

using System;
class Parse {
/// <summary>
/// Example of various Parse methods
/// </summary>
private static void Main() {
    //all the types in .Net have a Parse method
    int i = int.Parse("34");
    bool b = bool.Parse("true");
    double d = double.Parse("234.333");
    DateTime dateTime = DateTime.Parse("2008-03-02 12:20am");
    
    //TryParse will return false if the parsing fails
    int intvalue;
    bool ok = int.TryParse("42", out intvalue); //ok = True, intvalue = 42
    ok = int.TryParse("abc", out intvalue); //ok = False, intvalue = 0
    
    //ParseExtact takes a format
    DateTime dt = DateTime.ParseExact("02-03-2008", "dd-MM-yyyy",
        System.Globalization.CultureInfo.CurrentCulture); //dt = 3/2/2008 12:00:00 AM
    Console.Out.WriteLine("dt = " + dt);
    Console.In.ReadLine();
}
}