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发表于 2012-11-13 08:48:12
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1判断语句
! c% z5 H- [5 u4 U$ g& O: i if <condition> then$ D) ]/ B" Z* y" q
<statement sequence1>;8 @( Q& F2 Q9 J, r3 o
elseif <condition> then
- H: G0 ?8 a! \( m+ _8 E: w <statement sequence2>;
# Q- j, ^$ q8 D- g# E else
" ] Y" e. n! X: W2 \6 z5 J3 c <statement sequence3>;
- V- z# {( J: _$ R4 @6 W2 N end;
# A) q; N/ D8 x$ Z, D; c; D) U8 \如果分支比较多，用：; s; j9 t) z7 H1 B7 \- O# z' r$ j
inspect <expression>
+ D) _4 `% ^, d! z+ s9 q when <constant_list> then* y+ X1 G3 k5 f5 s% s# b1 s" r
<statement sequence1>;
0 w6 h/ f: _6 Z2 Z" ] when <constant_list> then
7 E! o% k8 ~) E1 d% L; c- }- u <statement sequence2>;
! O4 {/ o( }4 O8 Z+ Y ...
6 A v! T+ ^+ p1 h else& [2 q7 v3 |5 s: S6 m6 g7 ?- G. E
<statement sequence3>;, L! {; s5 r3 i
end;) ]5 C# |% @ q+ b, x4 Z. l
. H7 l! B6 ?$ D, Y p9 K0 y5 @5 J2循环语句
: ^7 V$ S8 z1 q% x (1) from <statement sequence1>
( M6 M/ B4 w1 v until <condition> loop
3 y8 q$ v$ C& k% ^7 D <statement sequence2>;& S) d0 B# z# x# y. G) I
end;, E# a' g2 {# e- p, Q
(2) while <condition> loop& z7 c# Y5 {- }# B5 ` T6 ~# m
<statement sequence1>;
3 Z) L& v, O" R% a6 O8 o end;+ y/ k5 M5 x" _) l& O- z
(3) repeat
) j5 c, Q7 {( N8 q <statement sequence1>;
2 o+ h* X# r( [+ S7 ?, s. r: n. W until <condition>;. e7 d! b1 |. T& f4 X) b6 a& R
(4) for <condition> to <condition> loop
/ B2 M. M3 T3 p/ [4 H9 d" l4 l4 f <statement sequence1>;( {" d, n6 o( y- ?/ V
next;, A6 ]+ \ d3 c. D/ ?7 H
3中断语句
3 i0 E: t. s% k; `# z2 F3 d waituntil <condition> prio <integer expression>;& c+ T' s/ t: f, X: z
* U! P t, e9 b- [5 c- d" p7 }( {8 l
以上为常用的函数！0 i: g* q' `% J0 Q3 N" Q
还有很多，如有需要我把资料发到你邮箱里 5 N. p+ r7 A& H+ d
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