{"id":1509,"date":"2023-04-29T10:48:55","date_gmt":"2023-04-29T02:48:55","guid":{"rendered":"http:\/\/www.aiersheng.cc\/?p=1509"},"modified":"2023-04-29T10:48:55","modified_gmt":"2023-04-29T02:48:55","slug":"vb-%e7%bc%96%e7%a8%8b%e4%bb%a3%e7%a0%81%e5%a4%a7%e5%85%a8","status":"publish","type":"post","link":"https:\/\/www.aiersheng.cc\/?p=1509","title":{"rendered":"vb \u7f16\u7a0b\u4ee3\u7801\u5927\u5168"},"content":{"rendered":"<p>vb \u7f16\u7a0b\u4ee3\u7801\u5927\u5168<br \/>\n\u578b\u51fd\u6570\uff1a abs(num): \u8fd4\u56de\u7edd\u5bf9\u503c sgn(num): num>0 1; num=0 0; num<0 -1;\u5224\u65ad\u6570\u503c\u6b63\u8d1f hex(num): \u8fd4\u56de\u5341\u516d\u8fdb\u5236\u503c \u76f4\u63a5\u8868\u793a\uff1a&#038;Hxx \u6700\u5927 8 \u4f4d oct(num): \u8fd4\u56de\u516b\u8fdb\u5236\u503c \u76f4\u63a5\u8868\u793a\uff1a&#038;Oxx \u6700\u5927 8 \u4f4d sqr(num): \u8fd4\u56de\u5e73\u65b9\u6839 num>0 int(num): \u53d6\u6574 int(99.8)=99; int(-99.2)=100 fix(num): \u53d6\u6574 fix(99.8)=99; fix(-99.2)=99<br \/>\nlog(num): \u53d6\u4ee5 e \u4e3a\u5e95\u7684\u5bf9\u6570 num>0 exp(n): \u53d6 e \u7684 n \u6b21\u5e42 \u901a\u5e38\u7528 num^n sin(num): \u4e09\u89d2\u51fd\u6570\uff0c\u4ee5\u5f27\u5ea6\u4e3a\u503c\u8ba1\u7b97 (\u89d2\u5ea6*Pai)\/180=\u5f27\u5ea6 con(num); tan(num); atn(num)<br \/>\n2.\u5b57\u7b26\u4e32\u51fd\u6570\uff1a len(str)\uff1a\u8ba1\u7b97\u5b57\u7b26\u4e32\u957f\u5ea6 \u4e2d\u6587\u5b57\u7b26\u957f\u5ea6\u4e5f\u8ba1\u4e3a\u4e00\uff01 mid(str,\u8d77\u59cb\u5b57\u7b26,[\u8bfb\u53d6\u957f\u5ea6])\uff1a\u622a\u53d6\u5b57\u7b26\u4e32\u4e2d\u95f4\u5b50\u5b57\u7b26\u4e32 left(str,nlen)\uff1a\u4ece\u5de6\u8fb9\u8d77\u622a\u53d6 nlen \u957f\u5ea6\u5b50\u5b57\u7b26\u4e32 right(str,nlen)\uff1a\u4ece\u53f3\u8fb9\u8d77\u622a\u53d6 nlen \u957f\u5ea6\u5b50\u5b57\u7b26\u4e32 Lcase(str)\uff1a\u5b57\u7b26\u4e32\u8f6c\u6210\u5c0f\u5199 Ucase(str)\uff1a\u5b57\u7b26\u4e32\u8f6c\u6210\u5927\u5199 trim(str)\uff1a\u53bb\u9664\u5b57\u7b26\u4e32\u4e24\u7aef\u7a7a\u683c Ltrim(str)\uff1a\u53bb\u9664\u5b57\u7b26\u4e32\u5de6\u4fa7\u7a7a\u683c Rtrim(str)\uff1a\u53bb\u9664\u5b57\u7b26\u4e32\u53f3\u4fa7\u7a7a\u683c replace(str,\u67e5\u627e\u5b57\u7b26\u4e32,\u66ff\u4ee3\u5b57\u7b26\u4e32,[\u8d77\u59cb\u5b57\u7b26,\u66ff\u4ee3\u6b21\u6570,\u6bd4\u62df\u65b9\u6cd5])\uff1a\u66ff\u6362\u5b57\u7b26\u4e32<br \/>\n\u6ce8\uff1a\u9ed8\u8ba4\u503c\uff1a\u8d77\u59cb\u5b57\u7b26 1\uff1b\u66ff\u4ee3\u6b21\u6570 \u4e0d\u9650\uff1b\u6bd4\u62df\u65b9\u6cd5 \u533a\u5206\u5927\u5c0f\u5199\u30140\u3015<br \/>\nInStr([\u8d77\u59cb\u5b57\u7b26,]str,\u67e5\u627e\u5b57\u7b26\u4e32[,\u6bd4\u62df\u65b9\u6cd5])\uff1a\u68c0\u6d4b\u662f\u5426\u5305\u542b\u5b50\u5b57\u7b26\u4e32 \u53ef\u9009\u53c2\u6570\u9700\u540c\u65f6\u9009 \u8fd4 \u56de\u8d77\u59cb\u4f4d\u7f6e InStrRev(str,\u67e5\u627e\u5b57\u7b26\u4e32[,\u8d77\u59cb\u5b57\u7b26][,\u6bd4\u62df\u65b9\u6cd5])\uff1a\u53cd\u5411\u68c0\u6d4b\u662f\u5426\u5305\u542b\u5b50\u5b57\u7b26\u4e32 \u8fd4\u56de\u8d77\u59cb\u4f4d\u7f6e space(n)\uff1a\u6784\u9020 n \u4e2a\u7a7a\u683c\u7684\u5b57\u7b26\u4e32 string(n,str)\uff1a\u6784\u9020\u7531 n \u4e2a str \u7b2c\u4e00\u4e2a\u5b57\u7b26\u7ec4\u6210\u7684\u5b57\u7b26\u4e32 StrReverse(str)\uff1a\u53cd\u8f6c\u5b57\u7b26\u4e32 split(str,\u5206\u5272\u5b57\u7b26\u4e32[,\u6b21\u6570][,\u6bd4\u62df\u65b9\u6cd5])\uff1a\u4ee5\u5206\u5272\u5b57\u7b26\u4e32\u4e3a\u5206\u5272\u6807\u5fd7\u5c06\u5b57\u7b26\u4e32\u8f6c\u4e3a\u5b57\u7b26\u6570\u7ec4 \u53ef \u9009\u53c2\u6570\u9700\u540c\u65f6\u9009<br \/>\n3.\u6570\u636e\u7c7b\u578b\u8f6c\u6362\u51fd\u6570\uff1a<br \/>\n.<br \/>\nCint(str)\uff1a\u8f6c\u6362\u6b63\u6570 True -1\uff1bFalse 0\uff1b\u65e5\u671f \u8ddd\u79bb 1899\/12\/31 \u5929\u6570\uff1b\u65f6\u95f4 \u4e0a\u5348\u6bb5 0\uff1b\u4e0b\u5348\u6bb5 1\uff1b Cstr(str)\uff1a\u65e5\u671f \u8f93\u51fa\u683c\u5f0f yyyy\/mm\/dd\uff1b\u65f6\u95f4 \u8f93\u51fa\u683c\u5f0f Am\/Pm hh:mm:ss Clng(str)\uff1a\u4e0e Cin()\u7c7b\u4f3c Cbool(num)\uff1anum \u4e0d\u4e3a\u96f6 True\uff1b\u53cd\u4e4b False Cdate(str)\uff1a\u8f6c\u6362\u65e5\u671f\u683c\u5f0f 0\uff1a#Am 12:00:00#\uff1b\u6b63\u6570 \u8ddd\u79bb 1899\/12\/31 \u5929\u6570\u7684\u65e5\u671f\uff1b\u6d6e\u70b9\u6570 \u65e5 \u671f\uff0b\u5c0f\u6570\u65f6\u95f4 Cbyte(num)\uff1anum<255 \u8f6c\u6362\u4e3a\u5b57\u8282 Csng(str)\uff1a\u8f6c\u6362\u4e3a\u5355\u7cbe\u5ea6\u6570\u503c Cdbl(str)\uff1a\u8f6c\u6362\u4e3a\u53cc\u7cbe\u5ea6\u6570\u503c Ccur(str)\uff1a\u8f6c\u6362\u4e3a\u73b0\u91d1\u683c\u5f0f\n4.\u65f6\u95f4\u51fd\u6570\uff1a date\uff1a\u53d6\u7cfb\u7edf\u5f53\u524d\u65e5\u671f time\uff1a\u53d6\u7cfb\u7edf\u5f53\u524d\u65f6\u95f4 now\uff1a\u53d6\u7cfb\u7edf\u5f53\u524d\u65f6\u95f4\u53ca\u65e5\u671f\u503c Datetime \u7c7b\u578b timer\uff1a\u53d6\u5f53\u524d\u65f6\u95f4\u8ddd\u79bb\u96f6\u70b9\u79d2\u503c\uff0c\u8ba1\u65f6\u5668\uff0c\u53ef\u8ba1\u7b97\u65f6\u95f4\u5dee DateAdd(\u95f4\u9694\u5355\u4f4d,\u95f4\u9694\u503c,\u65e5\u671f)\uff1a\u63a8\u7b97\u76f8\u90bb\u65e5\u671f DateDiff(\u95f4\u9694\u5355\u4f4d,\u65e5\u671f\u4e00,\u65e5\u671f\u4e8c)\uff1a\u8ba1\u7b97\u65f6\u95f4\u5dee \u65e5\u671f\u4e8c-\u65e5\u671f\u4e00 Datepart(\u95f4\u9694\u5355\u4f4d,\u65e5\u671f)\uff1a\u8ba1\u7b97\u65e5\u671f\u7684\u95f4\u9694\u5355\u4f4d\u503c Dateserial(date)\uff1a\u8f93\u51fa\u65e5\u671f\u503c\u3014\u6309\u5e8f\u5217\u8ba1\u7b97\u3015 Timeserial(time)\uff1a\u8f93\u51fa\u65f6\u95f4\u503c\u3014\u6309\u5e8f\u5217\u8ba1\u7b97\u3015 Datevalue(datetime)\uff1a\u53d6\u51fa\u5b57\u7b26\u4e32\u4e2d\u65e5\u671f\u503c Timevalue(datetime)\uff1a\u53d6\u51fa\u5b57\u7b26\u4e32\u4e2d\u65f6\u95f4\u503c weekday(date)\uff1a\u8ba1\u7b97\u661f\u671f\u51e0 MonthName(date)\uff1a\u8f93\u51fa\u6708\u5206\u540d year(datetime)\uff1a\u622a\u53d6\u5e74\u4efd month(datetime)\uff1a\u622a\u53d6\u6708\u4efd day(datetime)\uff1a\u622a\u53d6\u65e5 hour(datetime)\uff1a\u622a\u53d6\u5c0f\u65f6 minute(datetime)\uff1a\u622a\u53d6\u5206\u949f second(datetime)\uff1a\u622a\u53d6\u79d2\n5.\u5176\u5b83\u51fd\u6570\uff1a Array(unit,..)\uff1a\u52a8\u6001\u751f\u6210\u6570\u7ec4 Asc(str)\uff1a\u8f93\u51fa\u5b57\u7b26\u4e32\u7b2c\u4e00\u4e2a\u5b57\u7b26\u7684 ASCII \u7801 Chr(asc)\uff1a\u8f6c\u6362 ASCII \u4e3a\u5b57\u7b26 Enter\uff1aChr(13)&#038;Chr(10) Filter(\u6570\u7ec4\u540d\u79f0,\u5173\u952e\u5b57\u7b26\u4e32,[,\u5305\u542b][,\u6bd4\u62df\u65b9\u6cd5])\uff1a\n\u5c06\u5b57\u7b26\u4e32\u6570\u7ec4\u4e2d\u542b\u6709\u5173\u952e\u5b57\u7b26\u4e32\u7684\u5143\u7d20\u5b58\u6210\u65b0\u7684\u6570\u7ec4\u3014\u9ed8\u8ba4\u3015 [\u5305\u542b]\u4e3a false \u90a3\u4e48\u53d6\u4e0d\u5305\u542b \u7684\u5143\u7d20\n.\noin(ArrayName)\uff1a\u5c06\u6570\u7ec4\u4e2d\u5143\u7d20\u8fde\u6210\u5b57\u7b26\u4e32 Ubound(ArrayName[,\u7ef4\u6570])\uff1a\u53d6\u5f97\u6570\u7ec4\u76f8\u5e94\u7ef4\u6570\u7684\u4e0a\u754c Lbound(ArrayName[,\u7ef4\u6570])\uff1a\u53d6\u5f97\u6570\u7ec4\u76f8\u5e94\u7ef4\u6570\u7684\u4e0b\u754c \u4e00\u822c\u4e3a 0 Randmize n\uff1a\u542f\u52a8\u968f\u673a\u6570\u79cd\u5b50 Rnd(n)\uff1a\u53d6\u5f97\u968f\u673a\u6570\uff0cn>0 \u6216\u4e3a\u7a7a\uff0c\u53d6\u5e8f\u5217\u4e0b\u4e00\u968f\u673a\u503c\uff0cn<0\uff0c\u968f\u673a\u503c\u76f8\u540c\uff0cn=0\uff0c\u751f\u4ea7\u4e0e\u4e0a \u4e00\u968f\u673a\u503c\u76f8\u540c\u7684\u6570\n\u53d6\u4ecb\u4e8e A \u548c B \u4e4b\u95f4\u7684\u968f\u673a\u6b63\u6570 C\uff0c\u516c\u5f0f\uff1aC=Int((B-A+1)*Rnd+A) \u6761\u4ef6\u3014B>A\u3015<br \/>\n\u5b50\u7a0b\u5e8f\u548c\u81ea\u5b9a\u4e49\u51fd\u6570 Sub StrSubName Function StrFunName(arg[1],..) \u5b50\u7a0b\u5e8f\u4f53 \u51fd\u6570\u4f53 Exit Sub \u4e2d\u9014\u8df3\u51fa Exit Function \u4e2d\u9014\u8df3\u51fa<br \/>\nEnd Sub StrFunName\uff1dvalue \u8fd4\u56de\u503c<br \/>\nEnd Function<br \/>\n[call] StrSubName \u5f15\u7528\u5b50\u7a0b\u5e8f Var=StrFunName(arg[1],..) \u5f15\u7528\u51fd\u6570<\/p>\n","protected":false},"excerpt":{"rendered":"<p>vb \u7f16\u7a0b\u4ee3\u7801\u5927\u5168 \u578b\u51fd\u6570\uff1a 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