timer时钟(定时器)控件时间间隔设置为0时发生了什么?

//定时器 时钟

import win.ui;

/*DSG{{*/

var winform = win.form(text="简码编程 www.jianma123.com";right=412;bottom=198;parent=...)

winform.add(

btnDisable={cls="button";text="禁用定时器";left=217;top=134;right=371;bottom=169;z=3};

btnEnable={cls="button";text="启用定时器";left=217;top=92;right=371;bottom=127;z=1};

button={cls="button";text="修改定时器间隔时间为0";left=42;top=92;right=196;bottom=127;z=4};

button2={cls="button";text="修改定时器间隔时间为10";left=42;top=134;right=196;bottom=169;z=5};

static={cls="static";text="显示";left=47;top=41;right=368;bottom=72;center=1;nWrap=1;transparent=1;z=2}

)

/*}}*/



import win.timer

var timer = win.timer( winform );



var i = 0;

timer.onTimer = function(hwnd,msg,id,tick){

    i++;

    winform.static.text = i;

} 



winform.btnDisable.oncommand = function(id,event){

    timer.disable();//禁用

} 



winform.btnEnable.oncommand = function(id,event){

    timer.enable();//启用

    timer.setInterval(10) 

}

 

winform.button.oncommand = function(id,event){

    timer.setInterval(0);//间隔设置为0时发生了什么?     

}



winform.button2.oncommand = function(id,event){

    timer.setInterval(10) 

}



winform.show() 

win.loopMessage();