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发表于 2012-11-13 08:48:12
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1判断语句6 a! E" A; V) ?8 A: J9 }* }& o
if <condition> then
/ j: g! U' u$ R# u* B. U- L <statement sequence1>;
5 o( {. E# x7 ?0 U2 J elseif <condition> then
2 ]+ o3 i8 g1 S5 c+ ]0 e# ]5 y2 R <statement sequence2>;. g7 n a* V8 g% ?
else ! A! J( d# i# i! R
<statement sequence3>;
5 v6 S7 v! I! @* V5 i ^ end;" Q7 d+ C' |) \
如果分支比较多，用：
# F! R/ g1 G( Z5 T* A( U+ M$ ~" C8 ~ inspect <expression>
& ^# a5 c: B' \8 ]! R+ I when <constant_list> then
% X( I7 w% j, N' s <statement sequence1>;. F( ~% W1 p `7 t
when <constant_list> then
) Q7 L$ B7 d$ F$ I% h) f <statement sequence2>;/ D0 |1 B K# L, H6 g: m
...
* b! M4 z8 D* c2 B' `# n& S+ w; n: }! x else
0 M" v6 I/ ~1 ? <statement sequence3>;1 \5 R' ]' y7 |6 h j
end;7 `1 P/ c! ?/ G+ y9 w
* I, O8 z8 R* j3 i6 A3 W! m0 _. \2循环语句
' {3 S) f$ X& d# q) h, ^8 U (1) from <statement sequence1>: K, |$ K+ L3 c7 s
until <condition> loop- `" u! g5 c$ G" C
<statement sequence2>;; a. C1 \. r/ ?, [. U
end;
1 p7 x8 g! x4 P2 X (2) while <condition> loop ]9 n0 j. x# F! N7 Q* t3 Q( @
<statement sequence1>;
4 ?5 Z$ q4 Q; }' u end;
( S5 T0 V# T0 m% V- W. [& N7 D (3) repeat
w1 r9 O0 F$ f <statement sequence1>;9 Z. {6 G* _* H
until <condition>; n" I M# x8 i( g8 c3 _% l3 G
(4) for <condition> to <condition> loop. f) ]4 f( O& y. j4 R& x+ q8 V1 v
<statement sequence1>;0 V0 p* ]; a6 Z( g% t, k5 y
next;' Y* n2 m) g R- m
3中断语句
" w" ]; g- h7 E6 e1 L$ F2 s waituntil <condition> prio <integer expression>;2 n j2 ?% B3 k5 z) f
+ B% w+ r( q0 a# |& L% |0 w7 X
( V( {( O. S+ `5 r2 N: |5 t以上为常用的函数！/ a E" N# T8 e5 F! m
还有很多，如有需要我把资料发到你邮箱里
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