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发表于 2012-11-13 08:48:12
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1判断语句/ E. b& D7 w5 P. C0 R7 ^
if <condition> then# B% }% d& C, N. ]. J0 ^
<statement sequence1>;/ m. H Y+ b1 g8 u. L+ v9 @+ @( b
elseif <condition> then
- g O% V/ n- m6 i' ` <statement sequence2>;
* b1 e: U& p: E% C* Q else
( S m8 U/ _ K/ V% R" w7 _- R <statement sequence3>;
2 J- c* b5 `! U1 C' K5 R end;
/ r0 s$ F- @. D如果分支比较多，用：
( N* m0 z, R v( ^. s2 j7 P3 e inspect <expression>4 ~( {5 I' D$ W. g' l* T
when <constant_list> then* k* h Z) y' k' S& }0 x
<statement sequence1>;
0 s3 y0 O- N" }9 a1 d/ B* W' d2 H when <constant_list> then5 z4 O* G0 U; U K5 C# V
<statement sequence2>;# v' Y% |/ o/ ]7 s( M2 [
...8 Y5 D+ _: L+ l n
else- b/ y X: R. @ ]0 Q% k1 x' I" M6 @
<statement sequence3>;( h8 T8 k& r S/ q, d& K
end;
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! x* S2 Y+ e1 `! ?: Q6 q2循环语句8 \$ N) c+ e$ j! Q
(1) from <statement sequence1>
6 s9 G+ u" Q8 R' _3 a, E until <condition> loop
2 D1 t, a6 D b, O1 U <statement sequence2>;
7 P; z8 v5 h- s; E1 |# e end;
- R& ~# `! j* }0 \/ c& k (2) while <condition> loop/ s& N& {$ C* s" i% L- D1 B
<statement sequence1>;
{3 m. w% L. K6 _ end;
/ [6 `- i6 w5 ?/ Q (3) repeat ; @( w3 K# m- c7 ^! W0 z0 L
<statement sequence1>;# F) G- w1 x/ \) w4 o
until <condition>;
7 L! m( B2 a: b' D (4) for <condition> to <condition> loop& d; M" X7 Q/ ^/ p
<statement sequence1>;4 c# U, d# R/ ?! q" }
next;; F0 L+ }% g% ]1 \% g6 }: v
3中断语句 j7 i' p3 W; A2 _0 g( J
waituntil <condition> prio <integer expression>;
5 ]) X+ O* K5 I: g$ a$ @. z) O8 w+ i' B$ M7 \% g! t1 L2 a
+ j' ^- x a2 m/ E# B/ D; k以上为常用的函数！
" x3 }: T' {; ^5 T( u# J还有很多，如有需要我把资料发到你邮箱里
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