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- 来自专栏狗哥的 Java 世界
啥？小胖连公平锁 & 非公平锁都不知道？真的菜！
printQueue; public Job(PrintQueue printQueue) { this.printQueue = printQueue; } has been printed Thread 2: PrintQueue: Printing a Job during 6 seconds Thread 2: PrintQueue: Printing printed Thread 4: PrintQueue: Printing a Job during 4 seconds Thread 4: PrintQueue: Printing a Job during 6: PrintQueue: Printing a Job during 2 seconds Thread 6: PrintQueue: Printing a Job during 6 seconds document has been printed Thread 9: PrintQueue: Printing a Job during 3 seconds Thread 9: PrintQueue
61910发布于 2020-12-17 - 来自专栏JAVA乐园
java并发之同步辅助类semaphore
import java.util.concurrent.locks.Lock; import java.util.concurrent.locks.ReentrantLock; public class PrintQueue semaphore; //是否空闲打印机 private boolean freePrinters[]; private Lock lockPrinters; public PrintQueue printQueue; public Job(PrintQueue printQueue){ this.printQueue=printQueue; } printQueue=new PrintQueue(); //启动12个打印线程 Thread thread[]=new Thread[12]; for (int i =0; i<12; i++){ thread[i]=new Thread(new Job(printQueue),"Thread "+i); }
32810编辑于 2022-06-30 - 来自专栏历史专栏
【愚公系列】2023年11月 WPF控件专题 PrintDialog控件详解
printQueue = printDialog.PrintQueue; // 使用打印参数打印文档 // ...}需要注意的是，PrintDialog控件是一个模态对话框，即当它弹出时， 另外，该控件提供了一些常用的打印设置，但如果需要更精细的控制，可以使用PrintTicket和PrintQueue对象自己进行参数的设置。 1.属性介绍WPF中PrintDialog控件有以下属性：PrintQueue：获取或设置当前打印任务的打印队列。PrintTicket：获取或设置用于打印任务的打印机设置。 (printDialog.ShowDialog() == true) { // Set printer and page settings printDialog.PrintQueue = new PrintQueue(new PrintServer(), "Microsoft Print to PDF"); printDialog.PrintTicket = printDialog.PrintQueue.DefaultPrintTicket
1.3K11编辑于 2023-11-16 - 来自专栏hbbliyong
WPF备忘录（6）WPF实现打印功能
其中设置打印属性的是PrintTicket，管理打印机的是PrintQueue。 FrameworkElement element) { var printDialog = new PrintDialog(); SetPrintProperty(printDialog); var printQueue = SelectedPrintServer(PrintServerName, PrintName); if (printQueue ! = null) { printDialog.PrintQueue = printQueue; printDialog.PrintVisual(element, ""); } } /// <summary = printServer.GetPrintQueue(printerName); return printQueue; } catch (Exception) { return null;//没有找到打印机
2.8K50发布于 2018-03-05 - 来自专栏IT架构圈
java并发之辅助类semaphore
import java.util.concurrent.locks.Lock; import java.util.concurrent.locks.ReentrantLock; public class PrintQueue private Semaphore semaphore; //是否空闲打印机 private boolean freePrinters[]; private Lock lockPrinters; public PrintQueue printQueue; public Job(PrintQueue printQueue){ this.printQueue=printQueue; } printQueue=new PrintQueue(); //启动12个打印线程 Thread thread[]=new Thread[12]; for (int i=0; i <12; i++){ thread[i]=new Thread(new Job(printQueue),"Thread "+i); } for (int i=0; i<12
58330发布于 2018-06-01 - 来自专栏总栏目
队列（顺序存储结构）
初始化队列 ：initqueue ， 销毁队列： destroyqueue ， 判断为空： emptyqueue // 进队列 enqueue ， 出队列 dequeueu 打印队列 printqueue >front=(q->front+1)%maxsize; e=q->data[q->front];//因为队列中必须空一个数，空的数我们让front指向 return true; } void printqueue } int main(){ squeue *q; elemtype e; initqueue(q); for(elemtype i=1;i<=10;i++) enqueue(q,i); printqueue (q); enqueue(q,5); enqueue(q,7); printqueue(q); dequeue(q,e); dequeue(q,e); dequeue(q,e); printqueue
75230编辑于 2022-09-05 - 来自专栏静默虚空的博客
队列
} qu.front = (qu.front + 1) % MAXSIZE; data = qu.data[qu.front]; return 0; } void PrintQueue (i = 0; i < sizeof(array)/sizeof(ElemType); i++) { InQueue(queue, array[i]); } PrintQueue (queue); OutQueue(queue, data); OutQueue(queue, data); PrintQueue(queue); InQueue(queue , 11); InQueue(queue, 12); PrintQueue(queue); return 0; }
68980发布于 2018-01-05 - 来自专栏python3
Python: ping网段内所有ip并
subprocess.PIPE) out=p.stdout.read() result=regex.findall(out.decode(decoding)) if result: printQueue.put (result[0][0]),int(result[0][1]),int(result[0][2]))) return (ip,result[0]) def resultPrint(printQueue ): while True: try: data=printQueue.get() except queue.Empty: pass else: with safeprint: print(data) printQueue=queue.Queue() safeprint=_thread.allocate_lock() thread=threading.Thread(target=resultPrint,args=(printQueue,)) thread.daemon
2.6K10发布于 2020-01-08 - 来自专栏JAVA乐园
java并发之同步辅助类CountDownLatch
import java.util.concurrent.locks.Lock; import java.util.concurrent.locks.ReentrantLock; public class PrintQueue semaphore; //是否空闲打印机 private boolean freePrinters[]; private Lock lockPrinters; public PrintQueue getPrinter(); Long duration=(long)(Math.random()*10); System.out.printf("%s: PrintQueue
33420编辑于 2022-06-30 - 来自专栏.NET开发那点事
WPF PrintDialog 支持选择打印范围
var fdsCopy = xpsDoc.GetFixedDocumentSequence(); var xdw =System.Printing.PrintQueue.CreateXpsDocumentWriter (this.PrintQueue); var vtxd = (VisualsToXpsDocument)xdw.CreateVisualsCollator();
63020编辑于 2022-05-07 - 来自专栏总栏目
队列（链式存储结构）
->rear=q->front=NULL; else q->front=q->front->next; e=p->data; free(p); return true; } void printqueue cout<<endl; } int main(){ int e; squeue * q; initqueue(q); for(int i=1;i<10;i++) enqueue(q,i); printqueue (q); dequeue(q,e); dequeue(q,e); printqueue(q); } 教材标准队列 //链队运算算法 #include <stdio.h> #include <malloc.h ->rear=q->front=NULL; else q->front=q->front->next; e=p->data; free(p); return true; } void printqueue { squeue *q; initqueue(q); int n;//声明n个人 n=8;//因为题目中是8个人 for(int i=1;i<=n;i++) enqueue(q,i); printqueue
74020编辑于 2022-09-05 - 来自专栏小洁叫你mysql
c语言数据结构栈和队列代码实现
else Q->next = node->next; free(node); node = NULL; Q->data--; } // 打印函数 void printQueue ) { Node* Q = initQueue(); enQueue(Q, 1); enQueue(Q, 2); deQueue(Q); printf("%d\n", Q->data); printQueue
36010编辑于 2023-10-10 - 来自专栏全栈程序员必看
python解析xps文件_xps文件的基本操作
/ 打印 /// /// 打印机名称 /// 打印文件路径 public static void PrintXPS(string strPrint, string xpsFilePath) { PrintQueue defaultPrintQueue = new PrintQueue(new PrintServer(), strPrint); string filename = Path.GetFileName(
1K20编辑于 2022-09-06 数据结构实验之操作系统打印机管理器问题
则更新头指针和尾指针，使二者均置为空 e = s->data;//返回值 delete s;//释放临时结点 return e;//返回 } } //打印 void printQueue temp; EnQueue(Q, temp); break; case 2: cout << "---获取当前已有任务列表---" << endl; printQueue
16300编辑于 2025-05-28- 来自专栏半生瓜のblog
【数据结构】队列(C++)
return true; } //输出 void printQueue(SeqQueue* SQ) { if (isEmpty(SQ)) { return; } int LQ->front) { LQ->rear = NULL; } return true; } //打印输出 void printQueue(LinkQueue* LQ) { if (! 队首指针后移 SQ->front = (SQ->front + 1) % MAX_SIZE; return true; } //打印输出 //从第一个位置之后，rear都指向一个空的位置 bool printQueue recvPrev->next = deleteTmp->next; delete deleteTmp; Q->length--; return true; } //打印 bool printQueue
81330编辑于 2023-05-13 - 来自专栏MiningAlgorithms
Data Structures and Algorithms Basics（007）:Stack-Queue
_front = 0 def printqueue(self): for i in range(self. () myqueue.dequeue() myqueue.dequeue() print ('size was: ', str(len(myqueue))) myqueue.printqueue () myqueue.enqueue(6) myqueue.enqueue(7) myqueue.printqueue() myqueue.dequeue() myqueue.dequeue () print ('size was: ', str(len(myqueue))) myqueue.printqueue() myqueue.dequeue() myqueue.dequeue () myqueue.dequeue() print ('size was: ', str(len(myqueue))) myqueue.printqueue() #myqueue.dequeue
44020发布于 2019-08-08 使用React如何静默打印页面：完整的前端打印解决方案
打印性能优化// utils/printOptimizer.jsexport class PrintOptimizer { constructor() { this.printQueue = [ (printTask); this.processQueue(); } async processQueue() { if (this.isProcessing || this.printQueue.length const concurrentTasks = []; // 控制并发数量 for (let i = 0; i < Math.min(this.maxConcurrent, this.printQueue.length ); i++) { const task = this.printQueue.shift(); concurrentTasks.push(this.executeTask(task) await Promise.allSettled(concurrentTasks); this.isProcessing = false; // 继续处理剩余任务 if (this.printQueue.length
40010编辑于 2025-10-24前端打印插件Lodop与web-print-pdf npm包的深度对比分析
原生异步语法支持// web-print-pdf npm包：完全支持现代JavaScript异步语法class PrintService { constructor() { this.printQueue content, options, status: 'pending' }; this.printQueue.push return; } this.isProcessing = true; try { while (this.printQueue.length > 0) { const task = this.printQueue.shift(); task.status = 'processing false; } } // 异步获取打印状态 async getPrintStatus(taskId) { const task = this.printQueue.find
85010编辑于 2025-08-11- 来自专栏Java
synchronized关键字与ReentrantLock的区别和应用
import java.util.concurrent.locks.Lock; import java.util.concurrent.locks.ReentrantLock; public class PrintQueue long) (Math.random() * 10000); System.out.println(Thread.currentThread().getName() + ": PrintQueue } finally { queueLock.unlock(); // 确保锁被释放 } } } 代码的运行过程： 首先，我们定义了一个名为 PrintQueue
27710编辑于 2025-01-21 - 来自专栏技术之路
c#获取打印机状态
我在下面只取了其中的几个值，可以根据你的需要获取状态 using System.Printing; public static void GetPrintStatus() { PrintQueue
61210编辑于 2024-04-23
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