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发表于 2012-11-13 08:48:12
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1判断语句+ U6 {' j# m: I% Q# g0 v
if <condition> then; W. S% M; z; {4 b
<statement sequence1>;
; ^% l* U$ V) Y) ]' d* e$ Z elseif <condition> then6 ?: _5 B: I M" s
<statement sequence2>;& I- @+ ~. F, t, N! R: C
else
2 x6 l. j6 O A" g* p <statement sequence3>;" p, J: M0 L/ d: r7 i6 d
end;/ k! T" p/ `- H+ y9 w7 e1 |
如果分支比较多，用：3 J& M7 t2 }! F
inspect <expression>; L! B7 R# R3 F9 I
when <constant_list> then9 g' E J2 w8 P5 a) q+ p
<statement sequence1>;
` a9 O2 q5 m1 Y when <constant_list> then
) q0 x y* z! Z1 X ~1 C <statement sequence2>;
6 G8 v/ h* F& w! ]; w! R ...
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<statement sequence3>;
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2循环语句! T/ p: {+ {; N3 ?
(1) from <statement sequence1>
( `8 k& s) [3 q6 Z9 k, p$ \! _5 V7 b, | until <condition> loop' |! s8 y: K) {
<statement sequence2>;# p2 o2 Z6 _8 T* `3 ~
end;" L+ C5 ?2 [. b* u, d
(2) while <condition> loop( J+ Y, U5 ^+ N# _* d* V
<statement sequence1>;
$ {& [3 I! I2 V0 u. z$ S0 ~ end;( w9 s9 K' w' Z% o5 H( A! `+ D- ^
(3) repeat I8 v, E2 |% e- C" O
<statement sequence1>;2 K* Q( J3 u- @5 G" w
until <condition>;
5 g) n6 h) V; [/ P( ~" k, H" l) } (4) for <condition> to <condition> loop
! ~6 ]2 s2 E5 i N W <statement sequence1>;8 q) O. M! t+ n; X, Q
next;( E" i( N# t3 J; W" E# B' A
3中断语句0 I/ O2 S2 G+ D( Q' B
waituntil <condition> prio <integer expression>;+ [2 N+ L7 g) k2 L8 y" l: i9 |
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3 j6 `. j* L! }; @" h2 k& Y以上为常用的函数！
, v0 z/ z( Q7 Q# K: v2 a还有很多，如有需要我把资料发到你邮箱里
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