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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
3 h( H, B% ]; C7 d if <condition> then$ t3 @: p( R' d; _, t# [! K( P
<statement sequence1>;
2 F/ l& d% |5 f! y, \* \# ^" [ elseif <condition> then
, R$ g/ E# s8 h3 d4 Q <statement sequence2>;
$ N: U2 D' o0 a" I& b' a else & C$ M' n2 i4 D/ G
<statement sequence3>;
o8 Y3 O6 H$ I) N2 t end;4 d. A* ?7 n& {7 S
如果分支比较多，用：" p4 L. Y( { `/ ]$ U
inspect <expression>8 w" x% K3 O' O$ b
when <constant_list> then/ o0 c! K' j$ K# `2 h. b
<statement sequence1>;
7 ?: u$ i9 O7 U1 u: T2 Y when <constant_list> then6 K; b0 N4 v1 K, t) S
<statement sequence2>;! K4 s0 ^! X+ H
...
% b! B F5 z/ L" u K! v8 ? else
* E; ]" L# }; r1 T <statement sequence3>;6 c$ ~9 e: H/ T8 u$ X
end;3 B% ]$ Q& J4 G5 k
! _ C3 ~2 h1 e2循环语句; S, G% `% u5 v, Z7 L7 a
(1) from <statement sequence1>
( ]3 G8 ~) w5 f- [# j# t0 M until <condition> loop8 X' \( o2 n& L D8 x
<statement sequence2>;6 G. P$ z: i/ w( Y
end;
! K( }6 n7 e7 Q/ H, c* u. r3 j (2) while <condition> loop
# `; j6 d8 N6 M6 \% n) d <statement sequence1>;
: G0 V: o; {$ M. o% D end;: A* x, N. E5 `7 [7 w
(3) repeat ) q5 n, q- p1 j) a6 [4 K4 u) N
<statement sequence1>;
6 M! c! H% S# T% m until <condition>;
4 H4 k* X. X0 }6 n (4) for <condition> to <condition> loop
6 A$ a! K1 D1 z+ g1 o0 c <statement sequence1>;0 Y+ u- F6 |8 K' @( _
next;% G$ S& k4 q" w- v9 h
3中断语句
% o4 O: K) U: |2 Z4 c) k9 } waituntil <condition> prio <integer expression>;) @4 Q& u! c& [' O
* Z. W3 J" F1 K4 ]; ^
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以上为常用的函数！1 ?2 D4 @4 U$ w
还有很多，如有需要我把资料发到你邮箱里 : L# }! d; p& s" R( s
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