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发表于 2012-11-13 08:48:12
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1判断语句) w9 a0 k/ W9 c$ c, l6 c" c
if <condition> then
1 Y. I) {$ i8 i) A( @ <statement sequence1>;
5 I A5 q- B6 Y) w( l elseif <condition> then
2 z$ p- l+ g9 w <statement sequence2>;8 I3 I V) {1 u* V2 ] [1 v
else P& m% N7 b$ ?5 y& U) z. z
<statement sequence3>;
/ t$ e6 B% W. Q9 `- z# d5 ~0 A end;1 F# n" s/ I$ S3 }
如果分支比较多，用：
# H4 `3 A( a# x' k" q; l inspect <expression>" |4 Q S$ o5 f# r1 ~5 u
when <constant_list> then! l# {1 C9 E, M. ^
<statement sequence1>; t6 g8 r* }+ ~
when <constant_list> then
# v0 y% g. i' S6 V K) v/ A8 u <statement sequence2>;
( l+ |, F _- k* |% Q ...
' A% ?/ v. Q7 u9 g3 J i else
. I% _2 e* ^$ t- Z <statement sequence3>;
- r+ P' C) a+ |- x( B) g1 ?# ?end;
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1 _2 g9 n# ~& U4 _5 c2循环语句
, Q6 u! j$ m1 f$ G; h/ R& e" Z (1) from <statement sequence1>
: _% @5 W6 S3 C8 K7 I until <condition> loop
0 N+ x1 ]6 V* Z1 A. I0 q; i <statement sequence2>;$ b& ~3 R8 I* N0 b6 o2 X+ Q
end;
3 a2 ?/ M) v3 M2 m (2) while <condition> loop0 g4 i0 [4 M1 B* i: k
<statement sequence1>;
6 d8 L9 U) a: R% N3 ` end;* M4 G6 k1 p, o+ p3 P5 A0 [
(3) repeat . l" U! @9 ?% ^! p6 E4 y9 Q6 h+ X
<statement sequence1>;
5 N q6 M8 L/ i) p/ V. B* d until <condition>;
% Q# y7 _1 } _+ C/ L (4) for <condition> to <condition> loop
) M5 X$ J: B1 Q <statement sequence1>;: F. y. A% |6 G& h( g# l! @; L* j) _
next;) d! W! C+ t& G7 c' D0 ~
3中断语句7 ^( v/ b0 h" d+ |5 X5 o
waituntil <condition> prio <integer expression>;, P0 {8 J. O7 g: b' I/ { I
! {4 r- y; V0 R1 E! J1 E
3 e6 Y" }3 ]; t& _3 g! }5 @/ _以上为常用的函数！- n9 u* \5 ^0 u2 l Q0 X) g
还有很多，如有需要我把资料发到你邮箱里
3 Y6 h: w* h+ ]2 Y |& M# U# ~3 T+ n5 z
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