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发表于 2012-11-13 08:48:12
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1判断语句
/ U, Q/ ]4 [4 K I: x; N2 @ if <condition> then7 N4 ?' K" c; y
<statement sequence1>;0 k: @; ~# s% l
elseif <condition> then8 \4 r/ [! s& v, J9 h5 p
<statement sequence2>;( f1 |2 f, l& y9 _4 E) d$ \
else
. c- N! ~8 R, l# Y <statement sequence3>;
" J F. z* u g4 N) c ?6 f end;) T. j$ s! {5 d% B! F, R/ t
如果分支比较多，用：
0 m5 \9 n7 `* n/ n1 A4 v inspect <expression>
: o! u o& t4 `/ J$ g d& N) X5 r' k when <constant_list> then
, K/ K' g" }8 S <statement sequence1>;" Y9 m' c" m$ U2 f4 I+ s
when <constant_list> then
8 H+ R4 ~ d& V2 D. _% V <statement sequence2>;- p) b3 b9 O" I( A
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else8 z+ }5 {. b) }3 v. F* ^) J# } g
<statement sequence3>;6 P: n# h) J! P M# w5 a3 D
end;
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% |4 O" P8 D) k M" [# u- a2循环语句0 X; K4 a: q* w7 k( R3 O
(1) from <statement sequence1>
0 P8 h( V/ X* f/ I) s6 J- ^8 k until <condition> loop
* K+ x1 f, \" N6 D3 p <statement sequence2>;
( r5 u' A( J- k/ q, t5 W end;( F9 N8 P1 W; H+ @( X
(2) while <condition> loop
7 \# q( v- Z5 O- S1 L$ J1 R <statement sequence1>;3 j9 Z+ v; _# K& _% b) e9 z
end;
4 r7 D; L" K+ s2 x) G (3) repeat
# Q: |) d1 c$ t5 q# \/ U <statement sequence1>;
3 k1 B; Z0 ~4 c1 K! m$ S/ | until <condition>;! z& O5 S! H v( Q: r
(4) for <condition> to <condition> loop
7 B1 [# K X' F# r <statement sequence1>;
- f3 A6 }# d9 x6 {+ J0 p next;
5 w, U0 e: @0 m D3中断语句
; O8 H1 g4 U+ q; g waituntil <condition> prio <integer expression>;: y- {! `7 V. c& c0 V9 M% @
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4 p# f2 q2 ]8 r6 R# d7 k以上为常用的函数！) T: \% w9 ], C6 T. b
还有很多，如有需要我把资料发到你邮箱里 ]5 i0 l- u- G4 s; b
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