使用thread.manage来管理多线程，使用plus来绘制下载的可视化界面，用线程表在界面与线程池之间传递数据。

Code AardioLine:102复制
	
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//模拟多线程下载的可视化界面
import win.ui;
/*DSG{{*/
var winform = win.form(text="多线程下载的图形化界面";right=759;bottom=469)
winform.add(
btnPause={cls="button";text="暂停所有线程";left=16;top=88;right=160;bottom=133;dl=1;dt=1;z=2};
btnStart={cls="button";text="启动多线程下载";left=16;top=24;right=160;bottom=69;dl=1;dt=1;z=1};
btnStop={cls="button";text="停止所有线程";left=16;top=152;right=160;bottom=197;dl=1;dt=1;z=3};
plus={cls="plus";left=176;top=24;right=736;bottom=448;clipBk=1;db=1;dl=1;dr=1;dt=1;edge=1;notify=1;repeat="center";z=4}
)
/*}}*/
import thread.manage;       //导入线程管理器
manage = thread.manage(5)   //指定线程池的最大线程数
//以下模拟一个文件的大小，及映射为图像的宽高信息
var totalSize = 1000;//下载文件的总大小
var rowNum = 40;    
var colNum = totalSize / rowNum;    
import thread.table;            //导入线程表
var tt_DoneColor = thread.table();  //用来存储填充颜色
//初始化线程表
var ini_threadtables = function(){
    for(i=1; totalSize; 1){     
        tt_DoneColor[i] = null;
    }
}
//这是模拟下载的函数 
var downloading = function(arr1,color,startNum,endNum,pieceSize){
    if(!endNum) endNum = startNum + pieceSize -1;  //自动截取分块大小 
    for(i=startNum; endNum; 1){
        sleep(math.random(30,300)) //模拟网络下载花费的时间
        arr1[i]= color;  //修改线程表的数据
    } 
}
winform.btnStart.oncommand = function(id,event){
    if(manage.busy()==true) return;
    ini_threadtables();      iscancle = false;
    
    //创建5个线程任务，模拟执行下载任务
    var pieceSize = totalSize / 5 //设置每个线程下载的尺寸(将文件均分为5等分)
    manage.create(downloading, tt_DoneColor, 0xEEE080E0/*淡紫色*/, 1,, pieceSize)
    manage.create(downloading, tt_DoneColor, 0xEE65C200/*草绿色*/, pieceSize+1,, pieceSize)
    manage.create(downloading, tt_DoneColor, 0xEEFFC212/*黄  色*/, pieceSize*2+1,, pieceSize)
    manage.create(downloading, tt_DoneColor, 0xEEFF4100/*洋红色*/, pieceSize*3+1,, pieceSize)
    manage.create(downloading, tt_DoneColor, 0xEEBDB76B/*卡其色*/, pieceSize*4+1,, pieceSize)
    
    manage.waitClose() //等待所有线程结束
    if(not iscancle) win.msgbox("下载结束","提示")
}
winform.btnPause.oncommand = function(id,event){
    if(manage.busy()==false) return; 
    if(owner.text =="暂停所有线程"){
        manage.suspend();
        owner.text = "恢复所有线程"
    }else {
        manage.resume();
        owner.text = "暂停所有线程"
    }
}
winform.btnStop.oncommand = function(id,event){
    if(manage.busy()==false) return;  
    var handles = manage.getHandles(); 
    for(i=1;#handles;1){
        thread.terminate(handles[i],0) //停止线程
    }   
    iscancle = true;
    win.msgbox("下载已取消","提示")
    winform.btnPause.text = "暂停所有线程"
}
//画彩色小方块
winform.plus.onDrawContent = function(graphics,rc,txtColor,rcContent,foreColor){
    graphics.clear(0xFFFFFFFF) 
    
    var w, h = rcContent.width(), rcContent.height();
    var cell_w , cell_h = w / rowNum, h / colNum;
    var brush = gdip.solidBrush()
    for(i=1; totalSize; 1){
        var x =(i-1) % rowNum;
        var y = math.floor((i-1)/rowNum);
        brush.color = tt_DoneColor[i] : 0x55CCCC00/*土黄色*/;
        graphics.fillRectangle(brush, x*cell_w+1, y*cell_h+1, cell_w-1, cell_h-1);
    }
    return true;     
}
//定时刷新plus
winform.plus.setInterval( 
    function(){
        winform.plus.redraw();
    },100 
)
winform.show();
win.loopMessage();