怎样用PHP显示动态时间
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php动态显示时间,我们需要做的是获取到当前的时间戳,然后在通过innerhtml实时的显示到网页中,toLocaleString就是一个时间戳,按照一定格式显示,这里举个例子:<table>
<tr bgcolor="#FFFFFF">
<td>当前时间:</td>
<td id="CurrentTime"></td>
<script type="text/javascript">
function changetime()
var ary = Array("星期日","星期一","星期二","星期三","星期四","星期五","星期六");
var Timehtml = document.getElementById(\'CurrentTime\');
var date = new Date();
Timehtml.innerHTML = \'\'+date.toLocaleString()+\' \'+ary[date.getDay()];
window.onload = function()
changetime();
setInterval(changetime,1000);
</script>
</tr>
</table> 参考技术A 没试过,我一直是直接通过js的setInterval来实现的
matlab 鼠标指针坐标怎样显示
用matlab编写界面程序时想实现一个功能:当鼠标在窗口滑动时在其周围能显示当先鼠标的坐标位置。请各位大侠不吝赐教!!先谢过了!!
MATLAB如何动态显示鼠标的坐标值和图像像素值对于动态显示鼠标的坐标值和像素值,在其他语言如vc,vb中都比较方便,有直接的着方面的函数,那么在matlab图像处理里面又如何实现呢?
具体的实现方法很多,但归结起来就是获取坐标轴的current point 属性值,我这里给出的一个函数是从mathworks 获取柄稍作修改后的结果,相信对做图像处理的朋友有一定的作用。另一个就是自带的pixval函数。谁有不同的实现方法,请多多共享啊!
function dynpoint(arg,h)
% Show the coordinates of a plot dynamically
%
% To start use:
% dynpoint(h)
% where h is a handle to a figure, axes or e.g. line.
%
% To delete use:
% dynpoint('delete',h)
% where h is a handle to a figure, axes or e.g. line.
% (you may also use: dynpoint delete)
%
% There can only be one dynamic plotter in a figure at a time.
%
% Example:
% subplot(211), hline = plot(sin(1:10))
% subplot(212), plot(sin(1:100))
% dynpoint(hline)
% 2002,6.29
if ~exist('arg','var')
arg = gcf;
end
if ~isstr(arg)
handle = arg;
arg = 'init';
end
switch arg
case 'init'
if ~ishandle(handle)
error('h is not a handle')
end
[h,ax] = h2hax(handle);
% delete old dynamic text object
ht = findobj(h,'tag',[mfilename '_text']);
if any(ht)
delete(ht)
end
% text window at the bottom left corner
% text in centred
uicontrol(h,...
'style','text',...
'pos',[2 2 200 15],...
'tag',[mfilename '_text'],...
'userdata',ax(1))
% do the dynamic thing...
set(h,'windowbuttonmotionfcn',[mfilename ' move'])
case 'move'
ht = findobj(gcbf,'tag',[mfilename '_text']);
ax = overobj('axes');
if ~any(ax)
ax = get(ht,'userdata');
end
p = get(ax,'currentpoint');
set(ht,'string',sprintf('(%g, %g)', p(1), p(3)));
case 'delete'
if ~exist('h','var')
h = gcf;
end
[h,ax] = h2hax(h);
set(h,'windowbuttonmotionfcn','')
ht = findobj(h,'tag',[mfilename '_text']);
delete(ht)
end
% ----------
function [h,ax]=h2hax(handle)
typ = get(handle,'type');
if strcmp(typ,'figure')
h = handle;
ax = findobj(h,'type','axes');
elseif strcmp(typ, 'axes')
h = get(handle,'parent');
ax = handle;
elseif strcmp( get(get(handle,'parent'), 'type'), 'axes' )
ax = get(handle,'parent');
h = get(ax,'parent');
end 参考技术A
用imtool函数显示
function main()
h0 = figure;
h1 = imshow('1.jpg');
h2 = uicontrol('style','text','Position',[30 15 100 15],'string','non');
set(h1,'ButtonDownFcn',@clicky);
function clicky(varargin)
a=get(gca,'Currentpoint');
set(findobj('style','text'),'String',strcat('x:',num2str(a(1,1)),'y:',num2str(a(1,2))));
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