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发表于 2012-11-13 08:48:12
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1判断语句7 e+ x) E3 M7 b/ U$ a
if <condition> then
4 r8 c8 c7 F4 A; ]. K <statement sequence1>;
. B- Y6 [# |5 y% M' x elseif <condition> then
' R2 L! D# C" {2 e) z* V <statement sequence2>;
4 t/ G m5 W/ U else
, ~" B, B7 @2 }4 t8 i <statement sequence3>;
" Q, S9 |7 a0 `0 g% e/ K end;% d+ ~6 k9 c5 i2 ]1 i
如果分支比较多，用：
9 P8 [& I+ }* I" v inspect <expression>7 K' W4 M/ [0 c' s( x9 h# v
when <constant_list> then' v( O0 Y/ |6 B2 [" b0 E, E5 T
<statement sequence1>;1 ?" W e6 ^0 W
when <constant_list> then
; L* e" `2 @9 Y/ D* g; j5 ^ <statement sequence2>;
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else. z, V( B `, k
<statement sequence3>;3 ~/ I% _" x9 @& C' _
end;) p# k* E( `3 k; j8 `6 y7 V
L2 t: L G4 E0 g2循环语句' C. J( ^) l* x9 O9 _
(1) from <statement sequence1>
/ C) V- B, ~8 g) Z1 O( `9 e+ L until <condition> loop9 U4 V" m3 g# H+ Z8 W) y
<statement sequence2>;
4 K4 w! @7 Y) q% a end;
+ {7 T( e6 P" u5 X1 R1 h (2) while <condition> loop; O+ X3 {9 W% t' {# b$ s
<statement sequence1>;
1 `, H9 P; {8 ]' `: B0 Z end;' q- o, L# a/ h- @' E4 Z
(3) repeat
5 D% O/ l1 u- a( B <statement sequence1>;
5 t2 A+ g) D- x' T& t until <condition>;! `2 O6 q; o2 r$ O2 t0 G
(4) for <condition> to <condition> loop
5 e# q; F/ N2 K. S <statement sequence1>;: B/ N. G; M8 R- u @
next;0 ?, ^& m5 R6 q' w
3中断语句3 ^& B6 j8 ^. @ p$ o2 o ~
waituntil <condition> prio <integer expression>;
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9 h) `: _& O0 C) m9 w: d* X
9 C, x& J/ M% U以上为常用的函数！
# b& i5 g0 O$ I% j还有很多，如有需要我把资料发到你邮箱里 2 F% ~& P* `9 R0 U. M
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