如何用线程c ++写写文本行

Question

我有创建文本文件的程序并写入一些随机符号。如何使线程写出这些符号？这是我的代码：

static void MyThreadProc(){}
static const char alphanum[] = "0123456789";//this is random symbols I'm using
int stringLength = sizeof(alphanum) - 1;

char genRandom()   {
return alphanum[rand() % stringLength];
}

int main() {
String^ fileName = "file.txt";

StreamWriter^ sw = gcnew StreamWriter(fileName);

srand(time(0));

Thread^ myThread1 = gcnew Thread(gcnew ThreadStart(MyThreadProc));
Thread^ myThread2 = gcnew Thread(gcnew ThreadStart(MyThreadProc));
//Here I create my threds

for (int z = 0; z < 21; z++){//This cycle writes 21 random simbol

// myThread1->sw->WriteLine(genRandom());   
// myThread1->sw->WriteLine(genRandom()); this threads I want to start writing symbols
    sw->WriteLine(genRandom()); //write random symbols
}
sw->Close();
}

Answer 1

此代码使用线程将符号写入文本文件：

=DLookUp("[Letter]","[Grades]","" & Nz([AVG],-1) & " Between [ArtsLow] And [ArtsHigh]")