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发表于 2012-11-13 08:48:12
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1判断语句
: f' E. ?! s" J+ @# y* J9 k if <condition> then0 {7 N" \% r9 e8 W" b7 G& ~
<statement sequence1>;
6 ]0 o; r" q; Q" ] elseif <condition> then- ]8 h) I5 |# M0 I
<statement sequence2>;
4 a, P: Y7 x( U# P9 @$ T" S$ k0 {2 S else
0 j E3 ~' i& \/ r; e0 ]! X' m <statement sequence3>;
V5 i& `" _. @! u( w" c end;6 j* `% q# r: w' F3 t- C
如果分支比较多，用：
, F7 @; Z" H" H7 b- Y inspect <expression>
) W8 T+ T7 }! [7 f& O* ]+ [8 m when <constant_list> then6 s7 \1 J+ C: }5 m
<statement sequence1>;% f/ ~5 Z2 t7 m: y( _
when <constant_list> then5 j% B* U. f! L: J. g' B3 n7 L
<statement sequence2>;5 x' c5 r6 W* k$ A6 Y
...- `# F% V |5 F& l+ n; c
else
$ Y. S4 z( e1 I <statement sequence3>;
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( {# Z a+ P- f3 k) @5 e& \; {2循环语句
* K( r- y1 o. ~2 N% m6 ? G (1) from <statement sequence1>
5 r4 E' x" e8 p R/ Z o until <condition> loop' |& }. Y. s. \, M! u
<statement sequence2>;
1 I; g1 v2 p* P4 S8 k end;
) T+ K2 t# B) y0 i$ p9 r+ s (2) while <condition> loop
/ [2 z! c# ?0 I <statement sequence1>;: o3 Q% x8 @7 B. h
end;
! E/ O0 j+ S, H- q% l7 y (3) repeat 4 x: _' o1 t8 ~
<statement sequence1>;# U4 P7 l$ u$ h
until <condition>;
- c0 l- x9 E, q9 ^ (4) for <condition> to <condition> loop
+ m; P& Z$ c1 C- c' Y <statement sequence1>;9 F% _+ h8 A" y% B" T
next;& P' h5 K8 T7 C& J) K2 D- j7 k/ E
3中断语句/ s1 u6 }5 u: ?; V
waituntil <condition> prio <integer expression>;
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1 u7 c/ N9 k e. X. L以上为常用的函数！/ G. ^; Z, u/ ?$ m# Y( P) g
还有很多，如有需要我把资料发到你邮箱里
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