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发表于 2012-11-13 08:48:12
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1判断语句! G9 q6 ~# B8 c
if <condition> then$ Y7 @ |1 I" h7 k+ w4 r+ o& q( x
<statement sequence1>;
9 J x+ m4 R4 f2 Q( R4 |( x6 N elseif <condition> then% V$ x" y# U3 V4 }. m+ q
<statement sequence2>;
8 S5 O6 H! d( j$ @* I( r( ^ else
- N1 |% O* z+ z9 m <statement sequence3>;: d, i5 i: J, C5 a( v* S
end;
; O/ `8 C5 v0 x) @" p4 O- @/ N/ ^如果分支比较多，用：
# ~2 p5 s4 ~1 r0 W1 t! V2 [ inspect <expression>& ]4 w) G% B T9 W3 M1 Z7 H
when <constant_list> then7 o; C8 j& X7 b* C) d$ h
<statement sequence1>;
9 q7 T( A/ K5 i- o when <constant_list> then x, X5 k: A V v( h+ S% q
<statement sequence2>;! {6 ~5 k9 N- @0 @* }8 U, E5 x0 u, E
...
( }/ v3 ^& }4 J2 ? M0 T3 n else. ?# z8 B* K8 i; ^8 e8 t( P
<statement sequence3>;
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2循环语句! O: R) J0 l3 o5 \9 M$ Z- V
(1) from <statement sequence1>
1 W" ]; G( n% E5 ]2 Y3 R6 k until <condition> loop# M$ q+ a9 ]% ^1 ?, ~2 U$ N
<statement sequence2>;/ p/ Q, R! O$ ]3 r& T
end;
0 F o- s9 ?% g/ s$ D7 Y! V% X (2) while <condition> loop3 k' S! M6 j [ q! R( P) Z; l+ D5 G
<statement sequence1>;
0 z; T: y" U: K, d6 y end;
& s/ ^+ V& N- x& p1 x* q. r( z (3) repeat
! `. m$ ]0 R$ e8 b+ P' Y <statement sequence1>;
9 x ^/ b( r3 D; I' ?2 P' v$ [ until <condition>;
0 W2 u8 `6 @* B$ w% n (4) for <condition> to <condition> loop
/ T# {% C& y( ^0 ]! k <statement sequence1>;4 H; A; U8 C7 [. l
next;# ]+ @( e0 L1 }2 A) n0 R+ G
3中断语句
) Z7 Q' Q; a/ P* K' F8 Q waituntil <condition> prio <integer expression>;* z; m. @0 E$ F' F Y9 n
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; Z( r- D. \ f8 r/ Q/ n" s/ m以上为常用的函数！
( n+ b6 @+ y C ~. X' u/ `还有很多，如有需要我把资料发到你邮箱里 $ p) N2 o& s' Y+ x ]; a5 z: Y
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