<分区>
我正在尝试编写一个代码来返回随机字符，所以我编写了以下代码:
static char prepare-data()
{
Sleep(rand()%500); // sleep random amount
int n = rand()%26;
char c = (char)(n+65);
return c; // return random character
}
static void writer()
{
int i, writePt = 0;
char data;
for (i = 0; i < data_length; i++)
{
data = preparedata(); // go off & get data ready
buffers[writePt] = data; // put data into buffer
cout<<"writer thread: buffer["<<writePt<<"]="<<data<<endl;
writePt = (writePt + 1) % num_total_buffer;
}
}
但每次我运行代码时，我都会得到相同的字符 这算是问题吗