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发表于 2012-11-13 08:48:12
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1判断语句/ x# \* _0 \) ]' c1 v1 W6 y3 r
if <condition> then! w$ {! ^% r/ M' S# h
<statement sequence1>;
. Y, U7 h5 S% T( z9 K elseif <condition> then
& l: L! b2 T& Q. @4 O7 o <statement sequence2>;
: ^/ ?$ G& b+ M+ H0 G' t else
! p# ^+ r- h; U, `6 d4 h* o4 d <statement sequence3>;
6 P% i0 M3 n; ? end;; d) N, B0 R9 V1 Y
如果分支比较多，用： D$ F) k( p. M" ]
inspect <expression>8 U9 |) E- C# P: N
when <constant_list> then
6 N' d# W& h4 r. w <statement sequence1>;( _* ]. B0 [, ?
when <constant_list> then
! J. z" G1 P8 M+ ^' ]5 U3 z# b <statement sequence2>;
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else8 Y7 L* p; w& P" q$ I) N
<statement sequence3>;5 f& Y' ~4 `) B! R @. m
end;! h( O7 c$ c0 R* a: I
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2循环语句
# M6 L# [. U6 G+ A7 c' h7 b1 \ (1) from <statement sequence1>
; C: c2 J7 q2 e until <condition> loop7 l1 o* @. M, D2 F+ d! o$ i
<statement sequence2>;
% [ l6 ^. ]! ]* ?" c' Q; m end;8 ?. d: {, E: Z, y
(2) while <condition> loop
/ q/ B4 X6 X! O* a, G- {! J <statement sequence1>;7 F/ c% ], ~" ]3 u$ ~+ W% y
end;
; X& M7 j7 p. g2 C1 n) i) ] (3) repeat , g8 P% \1 T7 z1 E1 F( z8 _
<statement sequence1>;
5 Z+ ?, L+ y$ O: D8 I9 B2 e until <condition>;' [, U+ B5 Y: Q3 C) ]' O0 P
(4) for <condition> to <condition> loop9 Y( h" s1 R O' E
<statement sequence1>;9 u0 m0 R" q7 D( N* u" j
next;
6 `: r+ w; u: z$ B2 ~5 P% {2 S% G9 v3中断语句
8 N/ z* E: R% {/ [; B$ [ waituntil <condition> prio <integer expression>;( K1 E0 o- u+ R. l1 p8 }
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以上为常用的函数！
5 H! @7 J& s& n7 u还有很多，如有需要我把资料发到你邮箱里
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