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发表于 2012-11-13 08:48:12
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1判断语句1 y2 H& p7 b) ~; c2 {9 p
if <condition> then# N9 U( o7 p' M6 M& H
<statement sequence1>;
7 Y' E. S4 r& S9 L$ G" z elseif <condition> then: C& x5 P$ \% z2 {
<statement sequence2>;
: e9 d3 Y6 g3 [4 J) C else
/ Q- ~- J1 X' T9 y. ?) J <statement sequence3>;0 h" x' e1 s+ n) a% _. V% u2 f
end;
+ q6 R3 G) O% Z" A如果分支比较多，用：( `- M( |& r( n; p6 n! Q; `- k
inspect <expression>
' P$ c0 ^! g/ F/ u$ G6 C9 @6 T" X when <constant_list> then
/ S: R- ~- P! q, ^" ?: @ <statement sequence1>;
* E* _5 A4 v% \& {2 j) c" f when <constant_list> then J$ a" Q- {' [
<statement sequence2>;
' A1 _& r9 c# p8 J3 X) O& Y ...
4 V4 K; \4 z$ S$ @ else
* Y) _5 x' O& j$ p <statement sequence3>;! U) i ?8 r8 }$ w
end;
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& u4 i, g; \$ N- m( M2循环语句% k( ]9 A6 k. M* ~7 i3 u, p
(1) from <statement sequence1>' G+ H- U1 g4 F. T8 d
until <condition> loop
1 D0 H/ E# w6 y, d <statement sequence2>;
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(2) while <condition> loop) h- D) _. B4 s
<statement sequence1>;/ }& N6 P' ^# S* h' R
end;$ Z1 {+ z& B6 k5 U# c7 |
(3) repeat
0 _6 a4 ?' S* I% N# D <statement sequence1>;
% H' D X# {$ ? until <condition>;
7 P# s' ^# |3 ?! l; ?" i! L (4) for <condition> to <condition> loop+ U: B# s' ]3 ?% c
<statement sequence1>;
^* ^! K9 ~) @4 t# ?- X next;
R, i/ ^7 q* o( G) B4 _; O9 w3中断语句& K8 I, h- F/ M6 N2 e
waituntil <condition> prio <integer expression>;
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以上为常用的函数！6 p: E( @; v1 i0 A& R( v1 i7 W8 I
还有很多，如有需要我把资料发到你邮箱里 2 \- @+ H, r8 f3 d( B: u
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