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发表于 2012-11-13 08:48:12
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1判断语句
$ L% H7 n! }" ^9 Z4 X if <condition> then, m# g' E# m1 B* O5 A* q( E
<statement sequence1>;
4 T& w' Y2 X1 i! k8 ]1 U! I elseif <condition> then
8 u A& P4 J* W( Z# }, g6 L$ ] <statement sequence2>;
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<statement sequence3>;# K7 t% `2 d1 i" x4 e
end;1 o H0 P% T" `1 T9 c+ H s
如果分支比较多，用：
! {/ X$ r# v- ?: L& M inspect <expression>
; i5 J6 w2 G# U! H. \$ O when <constant_list> then2 d5 [' {+ ~: Y3 _
<statement sequence1>;) c+ [1 S+ k1 |7 m( |& o- T
when <constant_list> then
) m! W; C8 H$ J4 A+ n& J <statement sequence2>;7 D4 k7 f9 m1 p
...; N' i/ y4 o" p
else
1 N; a$ L5 D5 ^( ] X! _ <statement sequence3>;4 L. K# w% r2 H! L- i$ O
end;
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2循环语句' x9 M- p5 V0 l5 h. v) w6 f
(1) from <statement sequence1>
- S3 K: g7 i% b& e; T until <condition> loop
6 K! z. o8 c4 h! Y <statement sequence2>;$ S4 k: G/ j9 a) t
end;5 p; w6 ~. v6 E7 q, D* t0 |) H
(2) while <condition> loop0 n, g- C* h$ ?1 {' l, j. D( [
<statement sequence1>;: a) u; l: @ V& Q {( }2 G
end;
5 L) L3 C/ ~% _3 o8 z1 n x( Y (3) repeat . k3 p. f. y8 w* j, l# h% N+ y
<statement sequence1>;9 ]. K# K1 B) Y4 {6 @! C% [
until <condition>;
0 Q' O @, K! Q9 a7 G (4) for <condition> to <condition> loop1 E5 E! r. S; N+ l4 L7 ]: t
<statement sequence1>;) Z. W) I+ U0 {' G& P
next;
# ^6 B. y: w, K% {8 {) x% I3中断语句
: d4 ?# f7 N; `1 d; a waituntil <condition> prio <integer expression>;
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以上为常用的函数！3 }" B+ e/ }7 U6 m8 V
还有很多，如有需要我把资料发到你邮箱里 & {7 m: L; [3 y+ j" j
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