vb.net 交错 处理 一年中的月份天数的输出

处理一年中的月份天数的输出

知识点 ：

数组+交错

Module Module1    Sub Main()        Dim calendars()() As Double = New Double(11)() {}        Dim month As Integer        Dim days As Integer        Dim dayValue, i As Integer        For month = 0 To 11            days = DateTime.DaysInMonth(Year(Now), month + 1)            calendars(month) = New Double(days - 1) {}            i = 0            For Each dayValue In calendars(month)                calendars(month)(i) = i + 1                i += 1            Next        Next month        For month = 0 To 11            i = 0            Console.WriteLine("{0}月", month + 1)            For Each dayValue In calendars(month)                Console.Write("  {0}", calendars(month)(i))                i += 1            Next            Console.WriteLine()        Next month        Console.ReadLine()    End SubEnd Module

运行效果：