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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
$ u" d# ^ f6 i7 {0 f if <condition> then# P1 l" k8 I; `% P1 ?$ p
<statement sequence1>;, r/ [+ E' t" J9 @2 R# L
elseif <condition> then) h2 o8 u* `& m) g7 A! ?
<statement sequence2>;8 N' w3 U2 d# f! J
else ( D* q# \' V9 o+ H
<statement sequence3>;
% R4 T" \3 n+ E( [! m2 t end;
N; { c; n/ ]/ F& g+ E如果分支比较多，用：
$ N0 ~- ^0 M1 p6 v1 c3 s inspect <expression>7 [. }( ^0 ^0 p0 W: A* C$ D$ ~
when <constant_list> then
9 G+ a i& V/ p6 U, F <statement sequence1>;/ u8 C; q* v/ f! K# j
when <constant_list> then
+ g& q( \+ N, x9 ? <statement sequence2>;
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else7 E- Y1 V) M; W; ]) G+ Q8 c) X
<statement sequence3>;
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2循环语句 C+ i# W4 J1 D( U- _* m8 |3 S
(1) from <statement sequence1>1 u% {; c- E/ {# ^+ M% V
until <condition> loop! y. K( Z u O" {, [0 z& D/ `* J
<statement sequence2>;+ k: S* ]5 B) ~
end;6 U$ W+ ?5 |; j; g/ Y6 b6 p
(2) while <condition> loop6 K& f4 d, l" l. Z% I/ b9 p
<statement sequence1>;) M" N% i$ I% F$ i6 C0 P0 p- d
end;
3 e; B* O6 L. Q4 n0 }2 g (3) repeat
9 y4 ?: T @' r, r" o <statement sequence1>;
: C' R; m2 |; `8 Q* q6 g) j! e* i until <condition>;/ I: R3 ^3 N; e6 G! C1 N* v4 ~
(4) for <condition> to <condition> loop
+ ?4 s, b( G( T+ Q* n( G3 v: D <statement sequence1>;& Y( e3 b) t2 p
next;
% u8 H, z5 P+ b( Z0 y3中断语句
1 n3 R! d4 ^& P& f6 D, R waituntil <condition> prio <integer expression>; g4 k. V; s4 W6 `" V5 v
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8 B* u- ]! ^ a) F以上为常用的函数！
1 c* c* L: Q3 ~$ N3 U' F4 W还有很多，如有需要我把资料发到你邮箱里 2 J8 a- z$ J) G2 W
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