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发表于 2012-11-13 08:48:12
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1判断语句! a/ ^$ ~4 c7 s; S
if <condition> then& J9 p, H& W1 S1 E6 v! f
<statement sequence1>;
4 Y3 t4 n( n# A0 G$ s elseif <condition> then
, V% o( {( Q) K- m1 `7 [( L <statement sequence2>; X7 n+ [' G n: S4 T! e
else
( ?7 r; m P, m0 s: r. } <statement sequence3>;+ w. A9 @ \8 f6 A# q) c
end;. l9 U Z9 `3 O) s: U, O7 _/ S. F
如果分支比较多，用：. G' R/ ?$ Q q
inspect <expression>6 h; p! U$ F8 v: y" I% x
when <constant_list> then
. o" T* J: n) F1 P) ]& T <statement sequence1>;+ n0 t0 R1 x* ~7 W) [
when <constant_list> then+ r. \0 I- B8 |9 M$ h5 Q
<statement sequence2>;. ]5 B1 c" y6 `7 c6 |
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else1 O n4 N$ O% Y8 f. i2 |& i
<statement sequence3>;
, g2 e* u. f0 T7 r( l4 Qend;+ ]( B( i7 Y! v3 T- z: K- K
6 R1 S7 I i/ V, G2循环语句
. G: ]) z, e. A7 t2 F (1) from <statement sequence1>8 _0 ^) P3 m6 I% s% ?
until <condition> loop) }. R _4 e' v0 c5 \, f
<statement sequence2>;! f! C7 y6 W) B, n$ d" L
end;
* U7 R4 G" G2 S) \; i, K) Z+ a (2) while <condition> loop* m4 a1 p P2 g" O
<statement sequence1>;
1 i8 W. H4 ^# t' ` end;
. a8 t$ l4 ?' Z- V! v) ~ (3) repeat
2 F, k Y/ e8 c. o# o% Q <statement sequence1>;
& [/ a2 s$ `) t2 V: q' l* Q until <condition>;6 V1 Q* b) J7 y
(4) for <condition> to <condition> loop# v- [0 _2 {& f5 @- n
<statement sequence1>;$ ~1 O6 Q& M! K7 i
next;8 E: |" H {5 g$ K
3中断语句4 N5 c9 c; c; i8 X& a3 S* H
waituntil <condition> prio <integer expression>;
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3 L( [8 ]+ P9 n, V: b以上为常用的函数！% @7 u; F# [, [' s- D! a
还有很多，如有需要我把资料发到你邮箱里 . |, p/ g5 a, h" C
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