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发表于 2012-11-13 08:48:12
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1判断语句" S9 J' O: y+ P" T7 T0 n
if <condition> then3 U" n0 B) w0 K1 _% t
<statement sequence1>;. [4 H! j2 {) R- l- J
elseif <condition> then) j: C/ {, D& m3 \( [: E
<statement sequence2>;/ U6 N/ g! v& i4 f+ R+ k* q3 G
else
( r F7 m+ x+ L$ E* U% k2 f <statement sequence3>;
* D: D/ G) E; s( z* V1 W, g+ \/ _. W end;9 r) M8 i4 s0 y" e1 n( z1 g3 r
如果分支比较多，用：
8 |& K, y6 v+ \3 q5 E2 H inspect <expression>: }& d) w8 n, D: q. B" W' n: m6 N
when <constant_list> then
O9 b! y n9 t/ _- I) Y2 n <statement sequence1>;; P5 o7 f4 _( D K0 C
when <constant_list> then' Y+ i$ z4 E6 V/ V, F
<statement sequence2>;. \: B' }% `- O* L/ h! D
...
1 U0 `% K- {- g- N+ v1 } else
! }" c: d6 o% v! { <statement sequence3>;0 R# H" `) `2 D+ K4 l! s
end;1 G% O: ]- C; b- N9 q2 y' i- o
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2循环语句, l! `! k( K ~7 u- J
(1) from <statement sequence1>) I8 {& T9 q* I r+ W
until <condition> loop
# H/ O: u7 d' c1 I7 o) y <statement sequence2>;
* R! }) ^: K6 @' M9 q5 i end;
* z$ q/ W5 ]/ e* |' b5 \ (2) while <condition> loop5 v- V6 L/ Q5 I" U+ m
<statement sequence1>;9 i( S# V5 v. H6 I
end;
* R6 @! H v0 \! Q' W# Z$ f% W (3) repeat ! F3 `0 w* r2 D3 B7 }# A
<statement sequence1>;
2 _+ r+ f# m8 U9 W until <condition>;
! h$ e" T" e5 S* W1 \5 F, i (4) for <condition> to <condition> loop
! y' c7 |* V M% A5 O3 E' k( U5 {- M7 L <statement sequence1>;: s6 Z4 f& W3 D: s2 J. A( b; }
next;
7 p4 _# C$ G( h+ w7 f0 }, X3中断语句
# H C& h, E1 `! t; m& j waituntil <condition> prio <integer expression>;
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! x% O2 }% \% C. [9 {: |以上为常用的函数！
- d6 ~ W2 O! h4 g还有很多，如有需要我把资料发到你邮箱里
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