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发表于 2012-11-13 08:48:12
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1判断语句" z# e% ? f' t) f2 u5 z, n/ H. {
if <condition> then. M. S! J9 q2 C
<statement sequence1>;
# e4 {2 Z3 X$ t3 p) Q2 ` elseif <condition> then9 y, f! U+ R) S9 Z) y
<statement sequence2>;
- X: I7 o" Z. J else
/ X9 S4 i9 Y- D) N$ E <statement sequence3>;! U! c2 {( t' H7 y4 }3 Z& \
end;
# x) @2 D$ j1 s) `如果分支比较多，用：
6 @5 p. Q) w0 I8 F3 R5 m9 t inspect <expression>
3 i. k" r. u2 R7 f$ } when <constant_list> then
' c3 y5 m9 \( U# j! E0 }9 a <statement sequence1>;
, s9 g* y9 H! v- V when <constant_list> then6 z! P0 j9 ~" ~0 k9 A/ _
<statement sequence2>;
) S/ K" s: ?2 C1 O( x2 P0 M ...
( F( U$ f' w9 a2 w) q0 X2 `9 m else
f" j9 ~+ k. y5 W* j7 m <statement sequence3>;
1 W) o4 P. M/ a6 ]9 ~end;5 G: C0 E1 H$ z; K( ^4 T& \: t4 O
; P; s/ N* K* q, T2循环语句, g2 J. G( S2 h% J# |
(1) from <statement sequence1>" p+ B4 c5 L/ u% k0 d2 l# r/ s
until <condition> loop
! f7 s' Z$ b, a! B( V <statement sequence2>;
2 E8 ]( u; } `8 W5 J7 I end;) ^9 W9 J/ _& H1 T
(2) while <condition> loop; o9 m% c* R! d
<statement sequence1>;* k8 |& s8 D' {
end;7 p9 p! D1 M6 h" C
(3) repeat
$ i z: q& l3 h6 @) y, ]2 X0 h <statement sequence1>;* H: h3 ?+ n' {" l4 M# j( g
until <condition>;) c2 o8 r3 \- K4 o9 E
(4) for <condition> to <condition> loop
* U! B: C; V; I! H! Z8 {5 s <statement sequence1>;
+ I/ p+ A4 v% e6 c$ A next;
* K6 e4 t b4 z3中断语句- u/ X8 Q/ u. C. t% r
waituntil <condition> prio <integer expression>;
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5 \4 p$ r e9 q: B7 D, f
以上为常用的函数！) z4 ?6 k9 m+ Z5 n# z- ~8 _5 y
还有很多，如有需要我把资料发到你邮箱里
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