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发表于 2012-11-13 08:48:12
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1判断语句8 O" x1 F: G" \$ K0 p; p0 U+ l
if <condition> then
( G% E+ \1 o. j1 ^4 n& f <statement sequence1>;9 C# o5 D$ Y6 u7 e' v$ Q7 j0 I( g7 Q% F
elseif <condition> then( ~: D3 p- q" a$ f+ U* f9 M
<statement sequence2>;) M4 Q" ^7 j3 B$ I4 F
else y1 _- B& [/ e; ]5 K
<statement sequence3>;: Y/ A! J# }9 N% L
end;
7 t, A* m/ e( Y* I7 G如果分支比较多，用：
5 I5 O- d! |8 I9 `: j inspect <expression>
' ~( {3 v1 q" |* W% h$ P when <constant_list> then1 f. W; K+ l% @0 e
<statement sequence1>;/ }5 r2 l" A# d K$ @; Q; K
when <constant_list> then
; }6 S. Q# p& V7 Y- `) d2 B9 e <statement sequence2>;- ^8 l6 A1 ^# y& {. W5 V
...2 \ l) {; B' ]& F1 Z/ |5 v9 H
else
$ k8 b' q0 u8 ~* | a+ g- M <statement sequence3>;; U5 P L4 d7 X* v) G
end;
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2循环语句; J: p C) {+ U! f& O2 I: ?
(1) from <statement sequence1>
0 W: m' W+ w, t0 X$ P5 R until <condition> loop
# Y# j6 f& p3 g: Q <statement sequence2>;
( S3 J- {; l: d- c end;
$ N- C, b' P# K$ Y( f# z (2) while <condition> loop
2 l4 F9 j, E0 m* s9 J: r4 [. y4 i) F <statement sequence1>;- G/ }6 o" Q7 X/ e" e. K
end;( h& i, t4 \/ |1 P% P
(3) repeat ! `# y! `% M+ S5 c
<statement sequence1>;
* ^3 b8 i* ~- ~4 p% n, s until <condition>;) d7 J. t0 O" {9 S$ K2 k
(4) for <condition> to <condition> loop" N v% {8 [" h; J8 @
<statement sequence1>;* m g0 t: n5 V0 D# j8 S# k. D: h; v
next;
6 ?, h( |9 i9 b- I3中断语句
- T& R9 Z7 w U5 h, m waituntil <condition> prio <integer expression>;" R- R' i- }4 x0 @, T# A( L
+ f+ g/ v9 R6 W' h: Q- b. j* [6 ~, u8 i" i. [0 n' Z- n" G
以上为常用的函数！; y8 `: o2 z+ v/ t( x
还有很多，如有需要我把资料发到你邮箱里 3 k! }4 n) [3 I+ e R* S0 \! q
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