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]]> - æ–点调试http://www.aygfsteel.com/zxb90study/archive/2012/07/14/383074.htmlzx_bingzx_bingFri, 13 Jul 2012 22:52:00 GMThttp://www.aygfsteel.com/zxb90study/archive/2012/07/14/383074.html
最基本的æ“作是åQ?
1, 首先在一个javaæ–‡äšgä¸è®¾æ–点åQŒç„¶åŽè¿è¡Œï¼Œå½“程åºèµ°åˆ°æ–点处ž®×ƒ¼š(x¨¬)转到debug视图下,
2, F5键与F6é”®å‡ä¸ºå•æ¥è°ƒè¯•,F5是step into,也就是进入本行代ç 䏿‰§è¡ŒåQŒF6是step overåQ?
也就是执行本行代ç ,跛_ˆ°ä¸‹ä¸€è¡Œï¼Œ
3,F7是蟩出函�step return
4,F8是执行到最åŽã€?br />
=====================================
1.Step Into (also F5) è·›_…¥
2.Step Over (also F6) è·Œ™¿‡
3.Step Return (also F7) 执行完当å‰methodåQŒç„¶åŽreturnè·›_‡ºæ¤method
4.step Filter 逿¥˜q‡æ×o(h¨´) 一直执行直到é‡åˆ°æœª¾l过滤的ä½ç½®æˆ–æ–ç‚?讄¡½®Filter:window-preferences-java-Debug-step Filtering)
5.resume 釿–°å¼€å§‹æ‰§è¡Œdebug,一直è¿è¡Œç›´åˆ°é‡åˆ°breakpoint
6.hit count 讄¡½®æ‰§è¡Œ‹Æ¡æ•° 适刽E‹åºä¸çš„for循环(讄¡½® breakpoint view-å³é”®hit count)
7.inspect ‹‚€(g¨¨)æŸ?˜q算。执行一个表辑ּ昄¡¤ºæ‰§è¡Œå€?
8.watch 实时地监视å˜é‡çš„å˜åŒ–
9.我们常说的æ–ç‚?breakpoints)是指line breakpoints,除了line breakpoints,˜q˜æœ‰å…¶ä»–çš„æ–点类型:(x¨¬)field(watchpoint)breakpoint,method breakpoint,exception breakpoint.
10.field breakpoint 也å«watchpoint(监视ç‚? 当æˆå‘˜å˜é‡è¢«è¯Õd–或修æ”ÒŽ(gu¨©)—¶æš‚挂
11.æ·ÕdŠ method breakpoint ˜q›å…¥/¼›Õd¼€æ¤æ–¹æ³•时暂挂(Run-method breakpoint)
12.æ·ÕdŠ Exception breakpoint æ•æŠ“åˆ°Execptionæ—¶æš‚æŒ?待箋...)
æ–点属性:(x¨¬)
1.hit count 执行多少‹Æ¡æ•°åŽæš‚æŒ?用于循环
2.enable condition é‡åˆ°½W¦åˆä½ 输入æ¡ä»?为ture\æ”¹å˜æ—?ž®±æš‚æŒ?
3.suspend thread 多线½E‹æ—¶æš‚挂æ¤çº¿½E?
4.suspend VM 暂挂虚拟�
13.variables 视图里的å˜é‡å¯ä»¥æ”¹å˜å˜é‡å€û|¼Œåœ¨variables 视图选择å˜é‡ç‚¹å‡»å³é”®--change value.一‹Æ¡æ¥˜q›è¡Œå¿«é€Ÿè°ƒè¯•ã€?
14.debug ˜q‡ç¨‹ä¸ä¿®æ”¹äº†æŸäº›codeå?-〉save&build-->resume-->釿–°æš‚挂于æ–ç‚?br />
===========================
ä¾‹å¦‚ä½ æœ‰å¦‚ä¸‹½E‹åºåQ?br />
public static void main(String args[]) {
MyDate aa = new MyDate();
aa.addDays(day); =============�1)
System.out.println("eeeeeeeeeeeeeee");=============�2)
}
public String addDays(int more_days) {
System.out.println("1"); =============�3)
String result = ""; =============�4)
System.out.println("2"); =============�5)
return result;
}
ä½ åœ¨(1)å¤„åŠ æ–点åQŒè¿è¡Œåˆ°æ¤å¤„时如果Step Into (also F5)䏸™Ÿ©å…¥ï¼Œåˆ™æŽ¥ç€æ‰§è¡Œåˆ?3)ã€‚å†æ‰§è¡ŒStep Over (also F6)执行本行åQŒåˆ™æ‰§è¡Œåˆ?4)ã€‚æœ€åŽæ‰§è¡ŒStep Return (also F7)åQŒåˆ™è·›_‡ºaddDaysæ–ÒŽ(gu¨©)³•åQŒèŸ©åˆ?2)
MyEclipseæ–点调试JavaScript我们å¯ä»¥ä»Žä»¥ä¸‹çš„å‡ ä¸ªæ¥éª¤æ¥è¯´æ˜Žï¼š(x¨¬)
1.在站点下准备两个文äšgåQ?.jså’Œindex.html,在index.htmlä¸å¼•å…?.js,点击index.htmlä¸çš„æŒ‰é’®åQŒå°±ä¼?x¨¬)è°ƒç?.jsä¸çš„test()æ–ÒŽ(gu¨©)³•:
xml 代ç
åH¤htmlåH?nbsp;
åH¤headåH?nbsp;
åH¤meta http-equiv="Content-Type" content="text/html; charset=gb2312" /åH?nbsp;
åH?headåH?nbsp;
åH¤script type='text/javascript' src='./1.js'åH¥ï¹¤/scriptåH?nbsp;
åH¤bodyåH?nbsp;
åH¤input type="button" name="t" value="‹¹‹è¯•" onclick="test()"/åH?nbsp;
åH?bodyåH?nbsp;
åH?htmlåH?nbsp;
2.å¯åЍtomcatåŽï¼Œç”¨myEclipseçš„web2.0‹¹è§ˆå™¨æµè§ˆé¡µé¢ï¼š(x¨¬)
MyEclipseæ–点调试JavaScript‹¹…æžå›?
3.在web2.0‹¹è§ˆå™¨ä¸åQŒè¾“入页é¢åœ°å€åQŒå‡ºçް页é¢åŽåQŒç‚¹å‡Õd·¥å…äh ä¸çš„“js调试”按钮åQŒè¿™æ—¶ä¼š(x¨¬)åœ?#8220;Javascript Scripts Inspector”½H—å£ä¸åˆ—出当å‰é¡µé¢è®¾è®¡çš„æ‰€æœ‰jsæ–‡äšgã€‚é€‰æ‹©éœ€è¦æ–点调试的jsæ–‡äšgåQŒåŒå‡»è¿›å…¥ã€?br />
MyEclipseæ–点调试JavaScript‹¹…æžå›?
4.˜q›å…¥åˆ?.jsæ–‡äšgåŽï¼Œž®±å¯ä»¥ç»™js代ç åŠ æ–点了åQ?br />
MyEclipseæ–点调试JavaScript‹¹…æžå›?
5.˜q™æ—¶å†å›žåˆ°åˆšæ‰web2.0çš„æµè§ˆé¡µé¢ï¼Œç‚¹å‡» 按钮åQŒè°ƒç”?.jsä¸çš„test()æ–ÒŽ(gu¨©)³•åQŒç³»¾lŸå°±ä¼?x¨¬)自动蟩转到调试状æ€ï¼Œòq¶å®šä½åˆ°1.jsä¸åˆšæ‰è®¾¾|®æ–点的ä½ç½®äº†ã€?br />

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