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发表于 2012-11-13 08:48:12
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1判断语句
: {. L6 {& L1 r3 ]6 L/ F if <condition> then
8 R; z0 [% u1 W* v <statement sequence1>;8 X3 V: W5 n8 l" t+ R n2 P' m
elseif <condition> then
6 i7 ?( y- _& m2 x& K! h# J <statement sequence2>;
2 k* t. Z) Z" z! q6 v* }% Z$ ?1 @ else
* a: C( T R; o3 s+ }7 g <statement sequence3>;
3 z3 n" X/ y! R& l4 i" q end;/ f9 W; c( v- D1 D4 q
如果分支比较多，用：( M, K& [0 B/ h; H h) Z; v
inspect <expression>9 a' m$ {( i6 z `6 h
when <constant_list> then
7 b5 X4 o, m9 u# C <statement sequence1>;% n! G* K$ W; c6 B! L) N# y. _
when <constant_list> then
: W4 R& R7 i7 I, A% j* e) d. D <statement sequence2>;$ f$ I( x/ E& y# m* s% w# m9 B: f
...
( c9 L0 z7 I* k& d else
- o! e: }0 n4 b- G+ B$ i" T <statement sequence3>;6 P6 W: w+ h. L* D. s9 h% f% ~
end;& S& N; [* m, H2 a5 C& T7 U
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2循环语句1 T% _/ {: X. e/ `. K
(1) from <statement sequence1>( r0 I$ S" x2 | ]7 l
until <condition> loop* I, o" m; G8 Q2 ^/ y3 t) |
<statement sequence2>;) b" s' P* x' k3 ]+ w6 G
end;( @1 T; g; c2 X
(2) while <condition> loop
$ f8 d6 ~" E5 x0 F; \/ U <statement sequence1>;) N+ M9 @0 S3 w) `& g. _. r
end;
& ~. u7 D+ v+ v1 m (3) repeat 9 A( D% J1 z% {0 I, z$ v
<statement sequence1>;" k, Z9 }0 M7 |( x9 t
until <condition>;" B- T1 a0 @2 [ }/ ~% R
(4) for <condition> to <condition> loop
' c2 y' t, F* k. i. { <statement sequence1>;
) v* K2 p1 l; _5 x$ G/ ~ next;3 o0 ]+ C/ Q9 ]8 c5 e$ g1 Q0 A
3中断语句
) t a4 s9 j% `7 ` waituntil <condition> prio <integer expression>;# [2 k9 I1 A9 V
/ {+ H, @5 y W% i' v
) \; h/ @) B& P以上为常用的函数！
/ j t7 j: l1 ?( A' ] x' S还有很多，如有需要我把资料发到你邮箱里
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