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发表于 2012-11-13 08:48:12
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1判断语句' F6 Y' s% J0 y: J, T$ g& r
if <condition> then2 q7 R8 G1 X6 S9 |. i
<statement sequence1>;) t0 E# C) A! T+ k* y' k: O' ]
elseif <condition> then
& X/ O. H! ~7 h& s1 N <statement sequence2>;* p* U/ \! {8 q3 J7 {" t
else
/ i0 G s1 Z$ @8 f) O8 h- M, w <statement sequence3>;
( E5 U) U& b, r" s' X/ E) s end;
2 T8 c: p1 G- t7 h. b如果分支比较多，用：" A" o1 \9 t: x* |7 A
inspect <expression>
- R- z( H% S/ k6 K5 ?5 T+ r when <constant_list> then3 A8 V, P. ]! z
<statement sequence1>;
" {" T( P6 \4 x- W$ O6 p+ t when <constant_list> then7 G3 s$ a2 A7 E" P' n
<statement sequence2>;: Z4 J5 r, Q {' F: b" b# F
...8 q5 M: A' Z+ l# X$ f+ }$ [) H
else% i( E H- ~& ?( x4 s
<statement sequence3>;
# F2 K$ K5 `9 l5 x) D- M; eend;6 m8 a% E$ k- Q3 ?1 U
* [4 d: V3 ^( v, Q1 e4 }3 q i4 m2循环语句
3 V- w2 N+ T9 r. U, V/ E) F (1) from <statement sequence1>
* g( z8 g* r+ `' c- [/ e until <condition> loop
8 T4 v- v: m* D4 k <statement sequence2>;
: O/ n, h: C7 n* V4 I8 { end;
4 l" t9 I4 ^; b (2) while <condition> loop
) x: z4 i' F' ~4 C <statement sequence1>;
4 W' r3 l5 l, r& ? end;) F% P/ `# l4 J2 u4 \8 m
(3) repeat & z- z* e. H, q9 L
<statement sequence1>;
8 G( F. T) W4 n: ? until <condition>;8 W" z' i. D' V& V4 y
(4) for <condition> to <condition> loop; W P% H! d8 M2 E T
<statement sequence1>;4 i( q+ K# p9 ^' n3 X$ Y
next;
2 h, ?) {: s4 U" `) D$ u- h, `3中断语句
* C. y9 M9 E; i5 z8 j; z" n0 X waituntil <condition> prio <integer expression>; N$ b4 p3 D; a
: k7 x9 K, N) W; H
# P Y% m6 C3 L+ Q0 q
以上为常用的函数！
( p$ r& s; j* d0 b1 n f) _- R$ Z还有很多，如有需要我把资料发到你邮箱里
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