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发表于 2012-11-13 08:48:12
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1判断语句( B' o& E/ c: ~- E4 Q" u
if <condition> then) c" @: p+ y9 ~# q: ^5 O8 _! R
<statement sequence1>;) ~ D3 ~, C& y! l' _6 i
elseif <condition> then3 X5 ~2 B8 ?: N/ L& r9 m
<statement sequence2>;: v. @1 d+ G5 t* W
else + b1 H( @: d/ O$ c* }! H
<statement sequence3>;0 Q3 e% [7 D+ g. S; U& |0 u5 ?# a6 N
end;3 g t5 n f @3 X" C( @; F8 G
如果分支比较多，用：
9 V2 m' A B( a1 x inspect <expression>
) C% ~+ `+ ^( i5 p- a when <constant_list> then
1 n2 ?; d. L" W6 M8 S- g <statement sequence1>;. \! g9 t9 M) [/ C
when <constant_list> then
; i7 l6 R! C# | <statement sequence2>;4 @; ^9 i& ^" a1 F
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else
7 g: f+ l' j6 G+ Y- @ <statement sequence3>;6 G2 @3 s+ p( [7 i! r
end;
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( [3 [7 m! w1 |1 K3 S2循环语句" W( p+ A6 @& J- ~0 T
(1) from <statement sequence1>
( J+ o$ p8 i- Y4 b$ l1 A until <condition> loop0 c) s9 N9 @$ M
<statement sequence2>;
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(2) while <condition> loop7 D1 ^# `$ w0 M2 `2 ^
<statement sequence1>;
+ p& |9 { X& T5 m% x, _ e end;# j9 M8 I* ?6 b: x* [
(3) repeat
* H& J+ H% u7 @. H; W1 z' ?8 p <statement sequence1>;
/ m# i9 E4 d$ F, i- F until <condition>;2 F6 `" x/ m, |/ K2 i; @: K) c
(4) for <condition> to <condition> loop
. p' i# q! {1 F+ g3 X% w. v1 w <statement sequence1>;. w- c: `* R) Z6 d! J( u/ Z
next;
j' s/ t% r6 ~0 ?, h5 ~+ C# U! f3中断语句2 N' o/ e2 m7 V+ k% ^4 K; }
waituntil <condition> prio <integer expression>;
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以上为常用的函数！
4 M! J- w9 B) V1 f还有很多，如有需要我把资料发到你邮箱里 - V- f* `9 d) G1 |5 g" q$ v5 j/ o
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