为什么说我的程序有错呢 是不是全局变量用错了?
namespace ConsoleApplication1
{
class Program
{
static void Main(string[] args)
{
test a = new test();
string newdate = "20100217", olddate = "20110122";
public static string[] newDateList = new string[5];
newDateList = DateList(newdate);
public static string[] oldDateList = new string[5];
oldDateList = DateList(olddate); //我想把newDateList、oldDateList设为全局变量,它调用test类里面的DateList函数得到日期的数组。数组值在其他函数中不变。
a.CopyDirectory("D:\\1", "E:", oldDateList, newDateList); //CopyDirectory就调用newDateList、oldDateList的值
public class test
{
public test()
{
}
public string [] DateList(string sDateTime) {}
public void readwriterFile(string FileAddress,string oldDateList,string newDateList){}
public void CopyDirectory(string DirectoryPath, string DirAddress, string []oldDateList,string []newDateList){ for (int i = 0; i < 5; i++)
{if (inf.Name == oldDateList[i]) 还要调用 readwriterFile(FileAddress,oldDateList[i],newDateList[i] }
string newdate = "20100217", olddate = "20110122";
上面的代码应该放在方法外部
类的全局变量应该放在类内,用作成员变量。放在方法内部,只是方法内部的变量
{ public static string[] newDateList = DateList(newdate); static void Main(string[] args)
{
//public static string[] newDateList = new string[5];
//newDateList = DateList(newdate);
//public static string[] oldDateList = new string[5];
//oldDateList = DateList(olddate); //我想把newDateList、oldDateList设为全局变量,它调用test类里面的DateList函数得到日期的数组。数组值在其他函数中不变。 ... }
}