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2021/12/25
C# 陣列 增加/減少(動態配置)
using System;
public class SamplesArray
{
public static void Main() {
// Create and initialize a new string array.
String[] myArr = {“The”, “quick”, “brown”, “fox”, “jumps”,
“over”, “the”, “lazy”, “dog”};
// Display the values of the array.
Console.WriteLine(
“The string array initially contains the following values:”);
PrintIndexAndValues(myArr);
// Resize the array to a bigger size (five elements larger).
Array.Resize(ref myArr, myArr.Length + 5);
// Display the values of the array.
Console.WriteLine(“After resizing to a larger size, “);
Console.WriteLine(“the string array contains the following values:”);
PrintIndexAndValues(myArr);
// Resize the array to a smaller size (four elements).
Array.Resize(ref myArr, 4);
// Display the values of the array.
Console.WriteLine(“After resizing to a smaller size, “);
Console.WriteLine(“the string array contains the following values:”);
PrintIndexAndValues(myArr);
}
public static void PrintIndexAndValues(String[] myArr) {
for(int i = 0; i < myArr.Length; i++)
{
Console.WriteLine(” [{0}] : {1}”, i, myArr[i]);
}
Console.WriteLine();
}
}
/*
This code produces the following output.
The string array initially contains the following values:
[0] : The
[1] : quick
[2] : brown
[3] : fox
[4] : jumps
[5] : over
[6] : the
[7] : lazy
[8] : dog
After resizing to a larger size,
the string array contains the following values:
[0] : The
[1] : quick
[2] : brown
[3] : fox
[4] : jumps
[5] : over
[6] : the
[7] : lazy
[8] : dog
[9] :
[10] :
[11] :
[12] :
[13] :
After resizing to a smaller size,
the string array contains the following values:
[0] : The
[1] : quick
[2] : brown
[3] : fox
*/
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