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发表于 2012-11-13 08:48:12
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1判断语句: z3 S* |/ a" m/ I8 H9 r
if <condition> then L% y8 p) N- a& F8 I
<statement sequence1>;
+ _/ V" f2 w E" V0 Q1 _ elseif <condition> then
; N2 V! w D% _9 Q1 J& n+ b <statement sequence2>;
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<statement sequence3>;2 c W* I3 p9 o- H3 H1 g) u* f: r- F
end;
O9 y$ z6 U7 b: R" {如果分支比较多，用：
. m! z% b' z$ r# g- a Z inspect <expression>
+ n9 M5 h% Y* a5 k when <constant_list> then
3 z% V9 h, m( q1 {5 Q7 P7 H4 J8 z <statement sequence1>;/ w1 Z8 T [/ k3 m3 f) f/ w$ b/ \ x
when <constant_list> then t9 R7 Z5 d2 H/ F
<statement sequence2>;
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else
$ r+ {7 A) o: f) [( `% i1 S. i <statement sequence3>;9 r' W( v* q1 u1 i
end;
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`1 F5 s5 {3 Q2循环语句4 u( t4 x5 `; e9 I% A& e1 l+ T$ R
(1) from <statement sequence1>
2 f8 U, m1 Y( ^5 Z$ T- V |& o until <condition> loop7 ^7 h, m/ A9 s3 X+ g- I
<statement sequence2>;
) a: t) D$ e4 ?) L' r7 M: n end;3 U7 F Z% Y+ Y$ }( o/ |: w0 ?9 h
(2) while <condition> loop8 s3 a% m! V. E2 k: ~1 {8 e
<statement sequence1>;5 j( g5 a; |9 X7 t/ s) J
end;
- o) u+ u: V u4 p& Z& G7 } (3) repeat 7 |2 E3 e2 s) m$ ?: x
<statement sequence1>;
{4 ]6 _' M4 B0 S0 ^ until <condition>;
) f, P. i7 I2 g$ I+ d! x0 ]/ ] (4) for <condition> to <condition> loop
8 D% F" F6 C6 k/ c* q <statement sequence1>;
* |9 P3 a& }# Y( T7 q2 k next;; d/ y1 G: C4 L* r
3中断语句$ [0 ?# g, s9 i3 t5 a& o* F
waituntil <condition> prio <integer expression>;
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+ ~9 c- l; s; g U2 S+ B. M. P$ |' h+ @5 ?
以上为常用的函数！
- m+ g5 F* Q& t: q还有很多，如有需要我把资料发到你邮箱里
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