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发表于 2012-11-13 08:48:12
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1判断语句' G$ e0 I i3 |9 d g$ A
if <condition> then) m# V m `8 q0 c" `5 Y; p
<statement sequence1>;) {: a1 n5 P5 `6 W: D
elseif <condition> then& o+ }2 x: ]4 k
<statement sequence2>;
4 J9 m! N. q9 B% F else
' L7 Y1 c( d6 @8 p <statement sequence3>;
' [ E9 w0 O l" T" Z# E+ t end;
; Z- _: w8 [- k2 t! g# ?如果分支比较多，用：
8 L4 G( ]+ @0 E7 i5 O- X4 G; e9 i inspect <expression>
* S! K; x# z2 X' S! o5 s' } when <constant_list> then* y; i+ j" n# b ]( L9 _
<statement sequence1>;
3 `* e v. t9 G6 p when <constant_list> then
( i4 C" O: ?( {; ?' {) |: h <statement sequence2>;
3 g. Z) J0 O+ h6 P$ Y3 n ...
& H4 B7 ?+ ], R/ o( r/ j+ S else0 X/ n; D0 M( w P H# D
<statement sequence3>;6 B3 Z/ }- F5 ?- c" Y) |
end;/ Q: R8 Z. e2 e+ ^+ Z: l
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2循环语句) s& _: ^5 Z5 ?# p L
(1) from <statement sequence1>
' q9 o; @' C: e/ ^ until <condition> loop# J' M7 F1 ^; g+ s* x
<statement sequence2>;
, d' U2 x! A9 ?4 \9 b end;! m7 F, E7 z" N5 G8 a4 l+ ^# \. g
(2) while <condition> loop
) p' y0 `* h/ [& A <statement sequence1>;
$ {+ `8 ~: g1 @) w3 b' c. s: X end;
2 z( j! [* N' ^ (3) repeat
/ F; D4 k* ?/ S. e$ E <statement sequence1>;/ U4 J- w' a( P) q
until <condition>;
9 K8 H6 V0 i9 }2 r$ v! o4 ] (4) for <condition> to <condition> loop
, w2 T- G7 K3 l; v4 @ <statement sequence1>;7 Y8 q! k) V3 `/ l8 L
next;7 q: |! T# v8 w- C/ x# w7 @
3中断语句& W! E4 B" p7 i! D2 o; ~. K% I j
waituntil <condition> prio <integer expression>;
4 U$ h% I5 r% |0 }
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以上为常用的函数！
4 V9 g b- l ?, s8 M4 W& m6 T' |还有很多，如有需要我把资料发到你邮箱里 4 x5 B l9 U1 {
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