我有一个调用另一个函数的函数'graph1',如下所示。当我打电话执行访问多线程全局数组的函数
graph1threader(copy, date);
我得到我想要的答案,但是这需要30秒以上,所以我尝试使用多线程。但是,当我使用
thread[copy] = new Thread(() => graph1threader(copy, date));//pass date,copy
thread[copy].Start();
我得不到结果,即全局变量只能保持0.为什么这样?我该如何纠正这一点?
void graph1()
{
chart1.ChartAreas[0].AxisX.MajorGrid.Enabled = false;
chart1.ChartAreas[0].AxisY.MajorGrid.Enabled = false;
for (int k = 0; k < 5; k++)
{
int copy = k;
DateTime date = G.AddDays(copy);
refValues[copy] = 0;
threshValues[copy] = 0;
y_Values[copy] = 0;
y__Values[copy] = 0;
yValues[copy] = 0;
//task[copy] = new Task(() => graph1threader(copy, date));//pass date,copy
//ask[copy].Start();
graph1threader(copy, date);
}
for (int j = 0; j < 5; j++)
{
DateTime temp = G.AddDays(j);
string temper = temp.ToShortDateString();
y__Values[j] = y__Values[j] - y_Values[j];
xNames[j] = temper;
}
chart1.Series[1].Points.DataBindXY(xNames, y_Values);
chart1.Series[2].Points.DataBindXY(xNames, y__Values);
chart1.Series[3].Points.DataBindXY(xNames, refValues);
chart1.Series[4].Points.DataBindXY(xNames, threshValues);
chart1.Series[5].Points.DataBindXY(xNames, yValues);
}
void graph1threader(int x, DateTime date)
{
DBConnect A = new DBConnect();
List<string>[] list = new List<string>[4];
list = A.mandetselect();
int numberofmen = A.Countmandet();
string[] man_name = list[0].ToArray();
string[] trade = list[1].ToArray();
string[] license = list[2].ToArray();
string[] training = list[3].ToArray();
string[] display_status = list[4].ToArray();
//string abc;
List<string>[] lista = new List<string>[5];
List<string>[] listc = new List<string>[14];
for (int j = 0; j < numberofmen; j++)
{
int flag = 0;
if (!display_status[j].Equals("NO") && (selection == "ALL" || (selection == "LAE" && license[j] != "") || (selection == "NON LAE" && license[j] == "") || (selection == "ALL AVIONICS" && trade[j] == "Avionics") || (selection == "NON LAE AVIONICS" && trade[j] == "Avionics" && license[j] == "") || (selection == "LAE AVIONICS" && trade[j] == "Avionics" && license[j] != "") || (selection == "ALL AIRFRAMES" && trade[j] == "Airframes") || (selection == "NON LAE AIRFRAMES" && trade[j] == "Airframes" && license[j] == "") || (selection == "LAE AIRFRAMES" && trade[j] == "Airframes" && license[j] != "")))
{
refValues[x]++;
threshValues[x] = 0.8 * refValues[x];
string abc = man_name[j].Replace(" ", "_");
int no_of_proj = A.Countproj(abc);//required
lista = A.manprojselect(abc);//required
string[] projname = lista[0].ToArray();
string[] country = lista[2].ToArray();
string[] startofproj = lista[3].ToArray();
string[] endofproj = lista[4].ToArray();
string Status = "";
listc = A.Select();
int numberc = A.Count();//number of projects, not required
string[] nameofproj = listc[0].ToArray();
string[] status = listc[13].ToArray();
for (int l = 0; l < A.Countproj(abc); l++)
{
for (int m = 0; m < numberc; m++)
{
if (nameofproj[m] == projname[l])
{
Status = status[m];
}
}
DateTime shuru = DateTime.ParseExact(startofproj[l],
"dd-MM-yyyy hh:mm:ss",
CultureInfo.InvariantCulture);
DateTime anth = DateTime.ParseExact(endofproj[l],
"dd-MM-yyyy hh:mm:ss",
CultureInfo.InvariantCulture);
if (date >= shuru && date <= anth)
{
if (Status != "PLANNED" && Status != "LO" && flag == 0)
{
y_Values[x]++;//BASIC UTILISATION
flag = 1;
}
if (Status == "IP" || Status == "OTD")
y__Values[x]++;//EXCESS
if (Status == "PLANNED")
{
yValues[x]++;//UNUTILISED
}
}
}
}
}
}
我最近才碰到过多线程。所以请原谅,如果代码看起来不太好。 threshValue[]
,refValues[]
,y_Values[]
,y__Values[]
,yValues[]
都是全局变量
不,我试着再次运行代码。它工作正常,但增量值不会反映在全局变量中。但是,当我使用thread.join()时,我得到了我想要的结果,但延迟时间大约为20秒。 – 2013-05-14 08:34:47