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发表于 2012-11-13 08:48:12
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1判断语句
8 |& y0 Z! t* o if <condition> then9 t/ c4 T& l) Z+ q1 a
<statement sequence1>;
- s+ p/ N. W. {: K5 i2 z) T elseif <condition> then
0 T8 Z; Z( Z7 I4 z! o <statement sequence2>;
/ a0 @1 x& b. O5 N/ f else 0 B+ B$ A3 x) u/ k6 n! W G& ?
<statement sequence3>;
V' g. h0 I; {7 n g; Z; n3 B end;( j6 U( [5 { h: T) s2 {# k7 G* n1 P B* s4 O
如果分支比较多，用：
, B8 v; a. D& M' C( r inspect <expression>. [4 N! x2 M2 s( X6 h5 w6 s
when <constant_list> then
6 `& }2 \" E" T C" T I: H <statement sequence1>;
# \7 }# C6 y, Q! e2 ~7 p" |0 |2 Y ~ when <constant_list> then& i, \7 C& |+ ~( |, V
<statement sequence2>;
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else
* M0 j1 _! W- t9 ~ <statement sequence3>;2 x7 X6 o' U( N8 U) k0 G4 b4 \; |
end;$ M5 C9 g: ]3 A; u4 x
& R$ i, z5 o6 [8 \& p, v( l2循环语句 m/ P" A4 z. v0 t; Y. z
(1) from <statement sequence1>
[. g, q' x8 Y6 q, U9 |; P8 z until <condition> loop. O( o8 E- e5 n; |0 j3 ]
<statement sequence2>;
+ ]0 S4 q! P4 U( r6 i g+ m7 | end;& Z2 \) n" R( I$ T+ P, r/ p/ v
(2) while <condition> loop
8 Z/ t4 b0 @( j$ f <statement sequence1>;3 f# M# E ^9 ?$ a5 z' R8 ]8 J
end;
1 l$ [' v5 n' ^% Y4 k1 ]) q (3) repeat % `% k( d! W) W$ g
<statement sequence1>;+ q/ c4 ~2 E7 n! r0 p
until <condition>;& E9 t# T f. x/ V) d' n
(4) for <condition> to <condition> loop4 g( ~5 K! E7 |9 I7 ]
<statement sequence1>;- [+ q" G X: b
next;" K3 m/ i+ J7 b
3中断语句- {1 V! z2 ?. n1 y# i: ~/ Q
waituntil <condition> prio <integer expression>;
' G, _* i8 I. C* Z4 w7 y& Y8 L' N( P) H
% U9 e9 I: L- z3 v以上为常用的函数！
! b: D" p7 ]+ x5 {/ v还有很多，如有需要我把资料发到你邮箱里
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