tag:blogger.com,1999:blog-89453473481334250.post7875781180980620503..comments2017-10-10T19:25:49.991-07:00Comments on Willy的程式員之路: AND(&&)及OR (||) 判斷式Willyhttp://www.blogger.com/profile/02707968802332922492noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-89453473481334250.post-26524999002245144132008-08-20T01:39:00.000-07:002008-08-20T01:39:00.000-07:00謝謝火星Q比的建議我們來改改看謝謝~謝謝火星Q比的建議<BR/>我們來改改看<BR/>謝謝~Willyhttps://www.blogger.com/profile/02707968802332922492noreply@blogger.comtag:blogger.com,1999:blog-89453473481334250.post-74890056252653670382008-08-20T01:25:00.000-07:002008-08-20T01:25:00.000-07:00建議你在這種情況下應該用 "".equals(A)不用 A.equals("")因為 A 不知道...建議你在這種情況下<BR/>應該用 "".equals(A)<BR/>不用 A.equals("")<BR/><BR/>因為 A 不知道會不會是NULL ??whsienchttps://www.blogger.com/profile/08599795786029209749noreply@blogger.com