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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
$ c: H9 [( {, p; l P if <condition> then# e0 q4 {: V1 P. F+ h
<statement sequence1>;
F3 R$ b0 o1 l, `* y7 T4 { elseif <condition> then5 h) R: U6 S/ }- }, c
<statement sequence2>;
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<statement sequence3>;* S3 J" i6 \6 R/ _3 a! y, ?' f
end;
1 C' @ T- q1 r" n+ d& z, A" z! P如果分支比较多，用：
7 K. c P: K _2 }; j inspect <expression>0 v% X; q, L! B8 R, v6 y' T1 z
when <constant_list> then1 j$ ]3 v/ p" W3 Q+ t
<statement sequence1>;% t5 k$ n- J4 s% v$ ?% w. c; |$ D" a
when <constant_list> then
9 T$ m' x8 [; ?, U) i <statement sequence2>;
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else1 O, A$ x) [# Y0 u7 h' t$ G' A
<statement sequence3>;" w* [' q) G' p- n T* [
end;
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2循环语句
[0 Z8 c9 u* x* e4 T' e# t0 { H (1) from <statement sequence1>
& r/ _. ]) z0 _8 f6 a" | until <condition> loop
; r p. t. h% h6 \* ~, y <statement sequence2>;/ `% d* W; Y7 N! f: p
end;! Q- b3 A* \ v8 k1 c2 v
(2) while <condition> loop$ O& B4 @& m. g" q. W( k
<statement sequence1>;0 Y6 L% ?9 f N; u6 s
end;
8 O6 @5 ^+ N( }4 H3 I: s/ j (3) repeat ) F2 g- H+ l1 q# A* m! _+ N9 ~
<statement sequence1>;
8 _0 k. O. ^; ?: k8 U/ ~8 `* |# ], Z until <condition>;& Q7 V! K0 @& K# s* Q7 w( F
(4) for <condition> to <condition> loop
: M/ w; j/ ~# N+ H0 K2 r <statement sequence1>;
; i6 M8 {2 e7 r% w, u next;
( F9 @' T3 t# u6 L& N. N2 y. C3中断语句% B3 l& N' ^. J* X) R3 h6 b- f
waituntil <condition> prio <integer expression>;
+ t) f# X/ _4 S( z! d* a
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9 x/ n) J3 K" m' V+ ~/ y以上为常用的函数！
) g! n8 r( B, @! L5 _) p还有很多，如有需要我把资料发到你邮箱里 ) }% v1 S# N: X7 Q. i9 l( [4 {0 e
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