如何使用 sizeof() 運算子查詢 C# 中的資料型別或變數的大小
sizeof() 資料型別返回資料型別的大小。假設你需要查詢 int 資料型別的大小 −
sizeof(int);
對於雙精度資料型別
sizeof(double);
我們來看一個完整的示例來查詢各種資料型別的大小 −
示例
using System; namespace Demo { class Program { static void Main(string[] args) { Console.WriteLine("The size of int is {0}", sizeof(int)); Console.WriteLine("The size of int is {0}", sizeof(char)); Console.WriteLine("The size of short is {0}", sizeof(short)); Console.WriteLine("The size of long is {0}", sizeof(long)); Console.WriteLine("The size of double is {0}", sizeof(double)); Console.ReadLine(); } } }
輸出
The size of int is 4 The size of int is 2 The size of short is 2 The size of long is 8 The size of double is 8
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