00000016.htm

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<HTML><HEAD>  <TITLE>BBS水木清华站∶精华区</TITLE></HEAD><BODY><CENTER><H1>BBS水木清华站∶精华区</H1></CENTER>发信人:&nbsp;swifthorse&nbsp;(黑骏马),&nbsp;信区:&nbsp;Java&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<BR>标&nbsp;&nbsp;题:&nbsp;Re:&nbsp;怎么画图?&nbsp;<BR>发信站:&nbsp;BBS&nbsp;水木清华站&nbsp;(Mon&nbsp;Jun&nbsp;14&nbsp;11:56:26&nbsp;1999)&nbsp;<BR>&nbsp;<BR>&nbsp;<BR>&nbsp;&nbsp;定义一个Graphics变量&nbsp;g1,然后在paint(Graphics&nbsp;g)z中加一条语句:&nbsp;<BR>&nbsp;&nbsp;&nbsp;g1=g.create();&nbsp;<BR>&nbsp;&nbsp;以后就可以用g1&nbsp;来画图了,application和applet&nbsp;没多大区别。&nbsp;<BR>&nbsp;&nbsp;你可以在Canvas&nbsp;中画图。&nbsp;<BR>&nbsp;&nbsp;<BR>&nbsp;<BR>【&nbsp;在&nbsp;dxnb&nbsp;(异史士)&nbsp;的大作中提到:&nbsp;】&nbsp;<BR>∶<I>&nbsp;这JAVA书上讲的Graphics类是抽象类,为使用它&nbsp;</I><BR>∶<I>&nbsp;画图,难道非要编写一个子类把它的所有函数都&nbsp;</I><BR>∶<I>&nbsp;实现了?那岂非更加困难(既然这样,还非用那&nbsp;</I><BR>∶<I>&nbsp;Graphics干吗?)。&nbsp;</I><BR>∶<I>&nbsp;书上讲的全是applet的绘图,没见到application的&nbsp;</I><BR>∶<I>&nbsp;用法,哪位给解解困,多谢!&nbsp;</I><BR>&nbsp;<BR>&nbsp;<BR>--&nbsp;<BR>※&nbsp;来源:·BBS&nbsp;水木清华站&nbsp;bbs.net.tsinghua.edu.cn·[FROM:&nbsp;166.111.5.25]&nbsp;<BR><CENTER><H1>BBS水木清华站∶精华区</H1></CENTER></BODY></HTML>

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