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发表于 2012-11-13 08:48:12
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1判断语句( s4 C3 L' [: P% n
if <condition> then# X8 C8 t3 o5 v. o0 t2 j2 J
<statement sequence1>;
/ m! V& ?8 G: W" y; e4 r I elseif <condition> then
- g2 n- j4 K8 } K( h' q <statement sequence2>;: k* F, G7 D1 M" x
else
) g/ e' N; c2 }( u <statement sequence3>;) G6 o- a: ^6 i- n9 H% j
end;2 s e& U6 _2 T% ~1 U
如果分支比较多，用：6 x# l7 N3 q. @( H3 Q- L0 G
inspect <expression>
. V; [$ P# M0 {! l- j+ l when <constant_list> then
& K3 h5 i3 Y. i/ \( o <statement sequence1>;5 l3 c3 \1 }: D
when <constant_list> then. Z. ]9 S) R5 C
<statement sequence2>;
6 E8 P! y- P5 t ...
+ K6 P3 S. c) [ else
, b* `1 m( J- z1 J <statement sequence3>;5 \% b6 L; o2 a5 ?2 D
end;, |7 B9 }4 L4 p8 F6 u2 Z
4 ~3 [2 W# a$ ~2循环语句4 ]" R6 z/ ?, I8 G$ X! i; `4 ]
(1) from <statement sequence1>
5 G N: y9 Q$ K until <condition> loop
r, \! ]- @1 W$ d6 T( j: s' } <statement sequence2>;: d0 b1 P+ N- B$ W _
end;
2 ?/ {1 v- I9 r1 @5 y+ h+ E9 h5 A (2) while <condition> loop
( \6 K6 `6 {. |2 L; E <statement sequence1>;. `" e4 G9 q" A
end;$ d; r9 n1 n# |2 `) |
(3) repeat 8 S; A( p Q' T, @
<statement sequence1>;
( U) t5 G+ f' Z) Z6 K# | until <condition>;
1 \2 Q b2 Z+ J7 w% Q5 a) E (4) for <condition> to <condition> loop* g" D5 ?6 s/ } w& {0 ]3 M1 W, D& |
<statement sequence1>;
+ N4 F; F% ?- K- L7 d next;7 N: a. ?# e( w, k
3中断语句 n8 L( H# X0 F( a
waituntil <condition> prio <integer expression>;1 ?9 ^ h8 K' s5 v& x
5 g8 u: J1 v6 F+ g3 Q, t. u
7 b5 w8 t9 N" _( X4 T5 d0 s以上为常用的函数！
4 T& A; G! I3 b, ~; T+ V2 M6 r还有很多，如有需要我把资料发到你邮箱里
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