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发表于 2012-11-13 08:48:12
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1判断语句6 n' f" s0 N% z" u
if <condition> then% T+ P% P: B, k; L0 r& U# p) W) e
<statement sequence1>;8 n4 @5 x! q# _1 _0 X# A ?
elseif <condition> then1 M0 A% b( x' u) e. b9 \, v& ?
<statement sequence2>;( R9 P; E: G; Y
else ! I' H4 P/ J0 P( Y: z, s! Q, S
<statement sequence3>;
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如果分支比较多，用：
8 W+ c0 M1 C% J9 l+ C v) h+ E inspect <expression>
& S- c% X" R7 u3 w6 t' e when <constant_list> then) I3 d) m. a: z# T5 M* u* N3 G1 s3 x8 b
<statement sequence1>;
2 q. J1 i- n: ?; K0 m9 j when <constant_list> then
; a6 p! r2 z) A& b) S# F! | <statement sequence2>;
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else
/ r5 c3 z+ [3 \" x: [9 i5 h, S <statement sequence3>;
8 k" c: y F) S; X: M5 ?/ a$ Qend;
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% g/ m5 X& p. Z, N2循环语句
2 l3 T2 ] P' ?6 a3 O& G9 Y (1) from <statement sequence1>
8 N Q9 `/ M9 ?& Q6 i6 @ H+ i until <condition> loop1 |2 c: N; `8 t4 i6 I7 r
<statement sequence2>;1 d' x) ^+ L; F" a; |
end;
3 I1 D& L2 A6 Q; m( D) A l# Y (2) while <condition> loop
# O S; q2 Q$ G( I1 G( C <statement sequence1>;* c0 W* b G9 A$ h/ ?
end;% ~5 ^1 d* J3 [* i* X- e
(3) repeat
2 d+ p: Q2 L7 Z) G <statement sequence1>;3 {/ Z, h. _6 k
until <condition>;8 Z7 W8 f2 `. { L9 q {& N0 l; {
(4) for <condition> to <condition> loop
4 |& q1 c: G3 H5 E* x <statement sequence1>;/ o5 C$ [/ h7 |% X3 j d6 @4 l+ Y+ ]
next;8 \/ ^( \ b* r8 y# d7 }
3中断语句
8 H+ k0 o% z5 c. t5 P6 L; _ waituntil <condition> prio <integer expression>;' s4 r3 F" Y @
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+ ~) z& m4 h; m. K, M; c! f以上为常用的函数！9 H! [# Z% [! V# k" K* \& s
还有很多，如有需要我把资料发到你邮箱里
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