public static object SetCount(this Array self, int newCount)
{
if (self == null)
{
return(null);
}
if (self.Length == newCount)
{
return(self);
}
Type t = self.GetType().GetElementType();
Array newArray = Array.CreateInstance(t, newCount);
Array.Copy(self, 0, newArray, 0, Math.Min(self.Length, newCount));
//因为Array.CreateInstance API创建的数组如果元素Type为引用类型则为null
if (newCount > self.Length)
{
for (int i = self.Length; i < newArray.Length; i++)
{
newArray.SetValue(CreateInstanceTool.Create(t), i);
}
}
return(newArray);
}
public void Init()
{
value = CreateInstanceTool.Create(type);
SetValue(value);
}