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发表于 2012-11-13 08:48:12
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1判断语句
: E2 Z2 i k' z: Q* ~' G; N1 O if <condition> then# ?. T! s) t1 Z: h8 O5 l. v
<statement sequence1>;
; i6 M; M' s2 Q elseif <condition> then; [$ b' j3 W! q4 e
<statement sequence2>;8 k/ W& l# \8 m' d$ ^% C
else
; A) E* _ A1 M <statement sequence3>;
3 u4 e) V& z% o4 M$ P; A6 |, W end;: \0 I/ p B7 V2 Z! x6 j4 n
如果分支比较多，用：
" o3 e: T a! n: c inspect <expression>& a! ] J2 Q- _/ Z' d& r
when <constant_list> then
, n: e5 X4 R/ n <statement sequence1>;# n, }& i) [+ \+ z' _) r* W; l
when <constant_list> then/ R8 f% \: T/ e |' O/ x7 [
<statement sequence2>;% P1 N6 c: Q' n* L
.../ _; n1 R: j+ U! H: @
else' L w' G) R3 t" I9 D4 y
<statement sequence3>;
: k! P$ w0 P$ D2 |8 yend;
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. S# w, K/ a( G- Y$ W4 `6 p2循环语句
# c$ e& Q; e7 i$ L (1) from <statement sequence1>' q3 W' o( s/ z3 p. l
until <condition> loop
8 A/ ^. t0 t. p# ` <statement sequence2>;
0 t1 S; H! I! \% x" D end;
; y8 J' p" a. t# } (2) while <condition> loop0 G: r7 r, X4 `0 _$ k; Y1 c
<statement sequence1>;
) j& ?1 C, L: L0 @6 v end;
9 D' X' a& K) W- c! x; z( H* _ (3) repeat 9 k2 z& Z" b# o5 i8 J* `+ p
<statement sequence1>;- a) a" x- K. h+ b4 ]6 ?
until <condition>;
1 C% b5 }- z( |2 P' `9 g" D (4) for <condition> to <condition> loop( w% [1 D% F, v/ }
<statement sequence1>;- @5 k# V7 S5 }1 j: B
next;
: f. x7 k9 D4 B& O( \) q7 T3中断语句
/ K4 B9 \- e- ?3 l& z# e" @ waituntil <condition> prio <integer expression>;+ F% a+ ]1 t- L K. T: S1 F
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0 i' V; p* w) }. P9 [; K3 p以上为常用的函数！
: Q& m" ?( [% {# j* n. Y' p5 u还有很多，如有需要我把资料发到你邮箱里
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