用String的replaceAll("a","(a)");replaceAll("A","(A)");不就可以了。
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用String的replaceAll("a","(a)");replaceAll("A","(A)");不就可以了。
==========================同意。
String str="Yahoo! ? Yahoo! Personals - It's time to give fate a nudge. Create your profile or search for free . ?Search for:? ? on the Web in Images in Yellow Pages? in News in Products ?? ? Advanced ? Preferences ? New! Easter Gift Center - baskets, candy, flowers, and more Shop Auctions , Autos , Classifieds , Real Estate , Shopping , Travel Find HotJobs , Maps , People Search , Personals , Yellow Pages Connect Chat , GeoCities , Greetings , Groups , Mail , Messenger , Mobile Organize ? Addresses , Briefcase , Calendar , My Yahoo! , PayDirect , Photos Fun Games , Horoscopes , Kids , Movies , Music , Radio , TV Info Finance , Health , News , Sports , Weather More Yahoo!... ? ? Newest Models ? ? Browse New SUVs ? ? Get a Price Quote ? ? Buy/Sell Used ? ? Blue Book Pricing ? ? Car Insurance Enter for a chance to win a new 2004 Isuzu Ascender ? Yahoo! Business Services ? ? Web Hosting ? ? Get a Domain ? ? Sell Online ? Market Online ? ? ? Yahoo! Premium Services ? ? Personal Web Site ? ? Fantasy Baseball ? ? Personals ? PC Games ? Web Site Directory - Sites organized by subject Suggest your site ? Business & Economy B2B , Finance , Shopping , Jobs ... Computers & Internet Internet , WWW , Software , Games ... News & Media Newspapers , TV , Radio ... Entertainment Movies , Humor , Music ... Recreation & Sports Sports , Travel , Autos , Outdoors ... Health Diseases , Drugs , Fitness ... Government Elections , Military , Law , Taxes ... Regional Countries , Regions , US States ... Society & Culture People , Environment , Religion ... Education College and University , K-12 ... Arts & Humanities Photography , History , Literature ... Science Animals , Astronomy , Engineering ... Social Science Languages , Archaeology , Psychology ... Reference Phone Numbers , Dictionaries , Quotations ... Buzz Index - Yahoo! Picks - New Additions - Full Coverage ?? Personal Assistant Sign In Get free email with Spam ...............
";
这么多，
我找的关键字系a(不驱分大小写)
只有找到三个就可以啦
你自己想一下吧，很简单的。