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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' \. i. ~2 f: Q9 G! T7 H: u
if <condition> then$ ?0 ]( P0 D; U- u5 F6 U T6 x! U8 R" e
<statement sequence1>;
9 L9 m% q7 K* ~' R; y! K1 _* B7 t; ~ elseif <condition> then
2 R/ e" u- B) L5 j. C# { <statement sequence2>;+ a! x) N$ X! v6 d! b" C! A$ k
else 7 h1 \! I4 m$ u& L5 t
<statement sequence3>;4 I3 r& X+ n* {2 l; G. S
end;
6 Z7 Y+ g, m* Q9 q( j如果分支比较多，用：, m" i+ e& |7 Q0 v6 ~/ f
inspect <expression>7 s7 @' m- A) T' Q+ M
when <constant_list> then
$ F6 y/ S$ E* _# e <statement sequence1>;9 L+ _4 \4 G, f/ n8 `% J7 @# \* C
when <constant_list> then5 |) Z, S8 v' a6 S* o2 S3 Z$ B/ S
<statement sequence2>;
& a: T) v! @8 @2 G! [" e1 T ...
) P' I& M. L$ @+ a0 m else
6 r' j# k" m, C# e3 p$ H <statement sequence3>;
6 k$ ^8 H" X3 p3 a- yend;: w% F' e8 T+ A ^3 `; r
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2循环语句
) e) q; f5 `' j9 z* r (1) from <statement sequence1>% {9 X; G) n1 W2 t+ Z9 @- T1 G. P
until <condition> loop
+ S$ V. ^$ p0 E b6 q. N8 s <statement sequence2>;- H" P- ~- E; f7 `$ R q# f/ p
end;- |- M5 f: B5 |% w4 \1 P2 @
(2) while <condition> loop
( c; d1 {0 p- I5 M# n; } <statement sequence1>;1 a! F* X2 `2 h* O- k/ N( [
end;6 [4 i5 ?0 r1 }4 e0 o
(3) repeat . V7 a4 _8 p9 w
<statement sequence1>;- e- H U5 r7 e
until <condition>;4 R! G+ k/ I( o6 |) \) s0 j
(4) for <condition> to <condition> loop
( R% @4 ~0 j* Z% ]+ O+ h <statement sequence1>;
! R! Z6 B! h& O2 x- R/ B5 C next;
, Z: _9 p- B( L' O0 R+ p3中断语句
& U' `& f. H( q1 `0 G. Q/ f* a" h waituntil <condition> prio <integer expression>;4 M0 i) k/ h$ m- O% v' V! D6 p
+ _# Y" J/ L2 Q/ q& B! \* I
# }8 G7 x' }1 |$ [5 S. z以上为常用的函数！
7 `3 Q( p; k7 d/ [9 Z- D# M还有很多，如有需要我把资料发到你邮箱里
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