锘??xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:trackback="http://madskills.com/public/xml/rss/module/trackback/" xmlns:wfw="http://wellformedweb.org/CommentAPI/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/"><channel><title>&#20154;&#20154;&#33609;&#22312;&#32447;&#35270;&#39057;&#44;&#101;&#101;&#117;&#115;&#115;&#22269;&#20135;&#19968;&#21306;&#20108;&#21306;&#19977;&#21306;&#22235;&#21306;&#44;&#20037;&#20037;&#22825;&#22530;&#20037;&#20037;</title><link>http://www.aygfsteel.com/jiabao/category/30710.html</link><description>姍熸渻鍙渻緄﹀瀭闈掓湁鍑嗗倷鐨勪漢錛岄亱姘ｄ笉鏄瘡鍊嬩漢閮芥湁鐨?</description><language>zh-cn</language><lastBuildDate>Thu, 10 Apr 2008 06:50:45 GMT</lastBuildDate><pubDate>Thu, 10 Apr 2008 06:50:45 GMT</pubDate><ttl>60</ttl><item><title>DLookup鍑芥暟</title><link>http://www.aygfsteel.com/jiabao/archive/2008/04/10/191842.html</link><dc:creator>閲戝瀵?/dc:creator><author>閲戝瀵?/author><pubDate>Thu, 10 Apr 2008 05:46:00 GMT</pubDate><guid>http://www.aygfsteel.com/jiabao/archive/2008/04/10/191842.html</guid><wfw:comment>http://www.aygfsteel.com/jiabao/comments/191842.html</wfw:comment><comments>http://www.aygfsteel.com/jiabao/archive/2008/04/10/191842.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.aygfsteel.com/jiabao/comments/commentRss/191842.html</wfw:commentRss><trackback:ping>http://www.aygfsteel.com/jiabao/services/trackbacks/191842.html</trackback:ping><description><![CDATA[
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														<font color="#0000ff" size="3">DLookup 鍑芥暟<br />DLookup 鍑芥暟鐢ㄤ簬浠庢寚瀹氳褰曢泦錛堜竴涓煙錛夎幏鍙栫壒瀹氬瓧孌電殑鍊箋�傚彲浠ュ湪 Visual Basic銆佸畯銆佹煡璇㈣〃杈懼紡銆佺獥浣撴垨鎶ヨ〃涓婄殑璁＄畻鎺т歡涓嬌鐢?DLookup 鍑芥暟銆?br />浣跨敤 Dlookup 鍑芥暟鍙互鏄劇ず涓嶅湪紿椾綋鎴栨姤琛ㄨ褰曟簮涓殑瀛楁鍊箋�備緥濡傦紝鍋囧畾鏈変竴涓熀浜庘�滆鍗曟槑緇嗏�濊〃鐨勭獥浣擄紝鏄劇ず鈥滆鍗旾D鈥濄�佲�滀駭鍝両D鈥濄�佲�滃崟浠封�濄�佲�滄暟閲忊�濆拰鈥滄姌鎵ｂ�濆瓧孌點(diǎn)�傝�屸�滀駭鍝佸悕縐扳�濆瓧孌典綅浜庡彟涓�涓〃 錛堚�滀駭鍝佲�濊〃錛変腑銆傞�氳繃鍦ㄨ綆楁帶浠朵腑浣跨敤 Dlookup 鍑芥暟錛屽彲浠ュ湪鍚屼竴紿椾綋涓婃樉紺衡�滀駭鍝佸悕縐扳�濄�?/font>
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												<p>
														<font color="#0000ff" size="3">DLookup(expr, domain, [criteria])</font>
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														<font color="#0000ff" size="3">DLookup 鍑芥暟鍏鋒湁涓嬪垪鍙傛暟錛?/font>
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														<font color="#0000ff" size="3">鍙傛暟 璇存槑 <br />expr 涓�涓〃杈懼紡錛岀敤浜庢爣璇嗛渶瑕佽繑鍥炲叾鍊肩殑瀛楁銆傚畠鏃㈠彲浠ユ槸鐢ㄤ簬鏍囪瘑琛ㄦ垨鏌ヨ涓瓧孌電殑瀛楃涓茶〃杈懼紡錛屼篃鍙互鏄互璇ュ瓧孌典笂鐨勬暟鎹繘琛岃綆楃殑琛ㄨ揪寮忋�傚湪 expr 涓紝鍙互鍖呮嫭琛ㄤ腑瀛楁鐨勫悕縐般�佺獥浣撲笂鐨勬帶浠躲�佸父閲忔垨鍑芥暟銆傚鏋?expr 鍖呭惈鍑芥暟錛岄偅涔堝畠鍙互鏄唴緗殑錛屼篃鍙互鏄敤鎴峰畾涔夌殑錛屼絾涓嶈兘鏄彟涓�涓煙鑱氬悎鍑芥暟鎴?SQL 鑱氬悎鍑芥暟銆?<br />domain 瀛楃涓茶〃杈懼紡錛屼唬琛ㄧ粍鎴愬煙鐨勮褰曢泦銆傚彲浠ユ槸琛ㄥ悕縐版垨涓嶉渶瑕佸弬鏁扮殑鏌ヨ鍚嶇О銆?<br />criteria 鍙�夌殑瀛楃涓茶〃杈懼紡錛岀敤浜庨檺鍒?DLookup 鍑芥暟鎵ц鐨勬暟鎹寖鍥淬�備緥濡傦紝criteria 閫氬父絳変環(huán)浜?SQL 琛ㄨ揪寮忎腑鐨?WHERE 瀛愬彞錛屽彧鏄笉鍚?WHERE 鍏抽敭瀛椼�傚鏋滃拷鐣?criteria錛孌Lookup 鍑芥暟灝嗗湪鏁翠釜鍩熻寖鍥村唴璁＄畻 expr銆備換浣曞寘鍚湪 criteria 涓殑瀛楁蹇呴』鍚屾椂涔熸槸 domain 涓殑瀛楁錛屽惁鍒?Dlookup 鍑芥暟灝嗚繑鍥?Null銆?</font>
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														<font color="#0000ff" size="3">璇存槑<br />DLookup 鍑芥暟灝嗗熀浜?criteria 涓寚瀹氱殑淇℃伅榪斿洖鍗曚釜瀛楁鐨勫�箋�傝櫧鐒?criteria 鏄彲閫夊弬鏁幫紝浣嗗鏋滀笉緇?criteria 鎻愪緵鍊鹼紝Dlookup 鍑芥暟灝嗚繑鍥炲煙涓殑涓�涓殢鏈哄�箋�?/font>
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														<font color="#0000ff" size="3">濡傛灉娌℃湁璁板綍婊¤凍 criteria錛屾垨鑰?domain 涓病鏈夎褰曪紝DLookup 鍑芥暟灝嗚繑鍥?Null銆?/font>
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														<font color="#0000ff" size="3">濡傛灉鏈夊涓瓧孌墊弧瓚?criteria錛孌Lookup 鍑芥暟灝嗚繑鍥炵涓�涓尮閰嶅瓧孌點(diǎn)�傛墍浠ュ簲璇ユ寚瀹氭潯浠朵互紜繚 DLookup 鍑芥暟榪斿洖鐨勫瓧孌靛�兼槸鍞竴鐨勩�傚彲浠ュ湪鏉′歡涓嬌鐢ㄤ富閿�鹼紝鍦ㄤ笅渚嬩腑錛屼嬌鐢?[EmployeeID] 鏉ョ‘淇?DLookup 鍑芥暟榪斿洖鍞竴鐨勫�鹼細(xì)</font>
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														<font color="#0000ff" size="3">Dim varX As VariantvarX = DLookup("[LastName]", "Employees", "[EmployeeID] = 1")<br />鏃犺鏄湪瀹忋�佹ā鍧椼�佹煡璇㈣〃杈懼紡涓紝榪樻槸鍦ㄨ綆楁帶浠朵腑浣跨敤 DLookup 鍑芥暟錛岄兘蹇呴』浠旂粏鍦版瀯閫?criteria 鍙傛暟錛屼互紜繚鑳藉姝ｇ‘鍦拌繘琛岃綆椼�?/font>
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														<font color="#0000ff" size="3">鍦ㄦ煡璇㈢殑鈥滄潯浠垛�濊銆佹煡璇㈢殑璁＄畻瀛楁琛ㄨ揪寮忎腑鎴栨洿鏂版煡璇㈢殑鈥滄洿鏂板埌鈥濊涓潎鍙互浣跨敤 DLookup 鍑芥暟鏉ユ寚瀹氭潯浠躲�?/font>
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														<font color="#0000ff" size="3">濡傛灉闇�瑕佹樉紺虹殑瀛楁涓嶅湪紿椾綋鎴栨姤琛ㄦ墍鍩轟簬鐨勮褰曟簮涓紝涔熷彲浠ュ湪紿椾綋鎴栨姤琛ㄧ殑璁＄畻鎺т歡琛ㄨ揪寮忎腑浣跨敤 DLookup 鍑芥暟銆備緥濡傦紝鍋囧畾鏈変竴涓�淥rder Details鈥濈獥浣撳熀浜庘�淥rder Details鈥濊〃錛屽茍涓斿惈鏈変竴涓樉紺衡�淧roductID鈥濆瓧孌電殑鍚嶄負(fù)鈥淧roductID鈥濈殑鏂囨湰妗嗭紝瑕佷粠鍩轟簬榪欎釜鏂囨湰妗嗗�肩殑鈥淧roducts鈥濊〃涓煡闃呪�淧roductName鈥濆瓧孌碉紝鍙互鍒涘緩鍙︿竴涓枃鏈錛屽茍灝嗗畠鐨?ControlSource灞炴�ц涓哄涓嬭〃杈懼紡錛?/font>
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														<font color="#0000ff" size="3">=DLookup("[ProductName]", "Products", "[ProductID] =" _&amp; Forms![Order Details]!ProductID)<br />鎻愮ず</font>
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														<font color="#0000ff" size="3">铏界劧鍙互浣跨敤 DLookup 鍑芥暟鏄劇ず鏉ヨ嚜澶栭儴琛ㄥ瓧孌典腑鐨勫�鹼紝浣嗘槸閫氳繃鍒涘緩鍖呭惈涓よ〃涓墍闇�瀛楁鐨勬煡璇紝鐒跺悗灝嗙獥浣撴垨鎶ヨ〃寤虹珛鍦ㄨ繖涓煡璇㈢殑鍩虹涓婏紝鏁堢巼灝嗘洿楂樸�?<br />涔熷彲浠ヤ嬌鐢ㄢ�滄煡闃呭悜瀵尖�濇潵鏌ユ壘澶栭儴琛ㄤ腑鐨勫�箋�?<br />娉ㄩ噴聽(tīng)聽(tīng) 浣跨敤姝ゅ嚱鏁版椂錛屼笉鍖呮嫭瀵?domain 璁板綍鏈繚瀛樼殑鏇存敼銆傚鏋滃笇鏈?DLookup 鍑芥暟鍩轟簬鏇存敼鍚庣殑鍊鹼紝蹇呴』鍏堜繚瀛樻洿鏀廣�傛柟娉曟槸錛氬崟鍑燴�滆褰曗�濊彍鍗曚笂鐨勨�滀繚瀛樿褰曗�濆懡浠ゃ�佸皢鐒︾偣縐誨埌鍙︿竴涓褰曚笂錛屾垨浣跨敤 Update 鏂規(guī)硶銆?/font>
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														<font color="#0000ff" size="3">紺轟緥<br />涓嬮潰鐨勭ず渚嬪皢浠庢弧瓚?criteria 鍐呭璁板綍鐨勨�淐ompanyName鈥濆瓧孌典腑榪斿洖鍚嶇О淇℃伅銆傚煙涓衡�淪hippers鈥濊〃銆俢riteria 鍙傛暟灝嗙粨鏋滆褰曢泦闄愬埗涓衡�淪hipperID鈥濈瓑浜?1 鐨勮褰曘�?/font>
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														<font color="#0000ff" size="3">Dim varX As VariantvarX = DLookup("[CompanyName]", "Shippers", "[ShipperID] = 1")<br />涓嬩竴涓ず渚嬫潵鑷?Shippers 琛紝瀹冧嬌鐢ㄧ獥浣撴帶浠?ShipperID 鏉ヤ負(fù) DLookup 鍑芥暟鎻愪緵鏉′歡銆傝娉ㄦ剰錛屾帶浠剁殑涓や晶鏈姞涓婄敤浠ヨ〃紺哄瓧絎︿覆鐨勫紩鍙鳳紝榪欐牱鍙互紜繚姣忔璋冪敤 DLookup 鍑芥暟鏃訛紝Microsoft Access 閮藉皢浠庢帶浠朵腑鑾峰彇褰撳墠鍊箋�?/font>
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														<font color="#0000ff" size="3">Dim varX As VariantvarX = DLookup("[CompanyName]", "Shippers", "[ShipperID] = " _&amp; Forms!Shippers!ShipperID)<br />涓嬩竴涓ず渚嬩嬌鐢ㄥ彉閲?intSearch 鏉ヨ幏鍙栧�箋�?/font>
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														<font color="#0000ff" size="3">Dim intSearch As IntegerDim varX As VariantintSearch = 1varX = DLookup("[CompanyName]", "Shippers", _"[ShipperID] = " &amp; intSearch)鐪嬩功绱殑錛岃鏄湅涓婁笉鎬庝箞鏍風(fēng)殑涔﹀氨鏇寸瘡浜?jiǎn)锛寴q樻槸鐪嬬郴緇熷府鍔╁惂錛?2007-01-25 14:58:06)聽(tīng)聽(tīng)聽(tīng) 绔圭瑳(56217686)Stemp = DLookup("[鐢ㄦ埛緙栧彿]","緋葷粺鐢ㄦ埛","[鐢ㄦ埛緙栧彿]=''''''''''''''''''''''''''''''''"&amp; Me![鐢ㄦ埛緙栧彿] &amp;"''''''''''''''''''''''''''''''''") 鐨勬剰鎬濇槸 鎵懼嚭 緋葷粺鐢ㄦ埛 琛ㄤ腑 鐢ㄦ埛緙栧彿瀛楁絳変簬 x 鐨?鐢ㄦ埛緙栧彿錛屼笉涔熷氨鏄痻鍢?(2007-01-25 14:58:51)聽(tīng)聽(tīng)聽(tīng) 绔圭瑳(56217686)Stemp = DLookup("[鐢ㄦ埛鍚峕","緋葷粺鐢ㄦ埛","[鐢ㄦ埛緙栧彿]=''''''''''''''''''''''''''''''''"&amp; Me![鐢ㄦ埛緙栧彿] &amp;"''''''''''''''''''''''''''''''''") 鐨勬剰鎬濇槸 鎵懼嚭 緋葷粺鐢ㄦ埛 琛ㄤ腑 鐢ㄦ埛緙栧彿瀛楁絳変簬 x 鐨?鐢ㄦ埛鍚?緇х畫(huà)瀛︿範(fàn)......</font>
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