1publicclassexercise13{23publicstaticvoidmain(String[]args){4//比如，我们可以用数组来解决一个问题=>体验5//定义一个数组6//解读7//1.double[]表示是double类型的数组，数组名hens8//2.{3,5,1,3.4,2,50};表示数组的值/元素，依次表示

stackalloc官方文档https://learn.microsoft.com/en-us/dotnet/csharp/language-reference/operators/stackallocAstackallocexpressionallocatesablockofmemoryonthestack.Astack-allocatedmemoryblockcreatedduringthemethodexecutionisautomaticallyd