C# 多线程造成CPU占用率高

当线程多的时候就会造成CPU内存占用率过高

 
        private void button1_Click(object sender, EventArgs e)
        {
            Thread TH1, TH2, TH3, TH4, TH5;
            TH1 = new Thread(Thread1)
            {
                IsBackground = true
            };
            TH2 = new Thread(Thread2)
            {
                IsBackground = true
            };
            TH3 = new Thread(Thread3)
            {
                IsBackground = true
            };
            TH4 = new Thread(Thread4)
            {
                IsBackground = true
            };
            TH5 = new Thread(Thread5)
            {
                IsBackground = true
            };
            TH1.Start();
            TH2.Start();
            TH3.Start();
            TH4.Start();
            TH5.Start();
        }
        public void Thread1()
        {
            while (true) ;
        }
        public void Thread2()
        {
            while (true) ;
        }
        public void Thread3()
        {
            while (true) ;
        }
        public void Thread4()
        {
            while (true) ;
        }
        public void Thread5()
        {
            while (true) ;
        }

上面这段代码，CPU的占用率高

解决方法：

只要我们上每个线程岔开时间执行即可，我们在每一段循环中增加thread.sleep(1)，让线程休眠等待。

        public void Thread1()
        {
            while (true)
                Thread.Sleep(1);
        }
        public void Thread2()
        {
            while (true)
                Thread.Sleep(1);
        }
        public void Thread3()
        {
            while (true)
                Thread.Sleep(1);
        }
        public void Thread4()
        {
            while (true)
                Thread.Sleep(1);
        }
        public void Thread5()
        {
            while (true)
                Thread.Sleep(1);
        }