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发表于 2012-11-13 08:48:12
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1判断语句3 L; e3 {4 y& G/ t- u' ~0 q
if <condition> then# h! r& f4 v& s" B+ H" m6 P
<statement sequence1>;( R7 Z0 q: H! j/ Y$ V
elseif <condition> then% F( T/ e, S6 L3 S
<statement sequence2>;! S3 z4 D0 p/ {* T8 w% Z
else
z2 h# |, }" v( p' a; L! T, q <statement sequence3>;% G' [1 S7 i# Q$ f3 {$ u
end;
% m' I9 t/ o, A0 ^0 Y8 r' P4 u3 k如果分支比较多，用：$ v) n8 U% \; u" a9 A7 Y
inspect <expression>
6 f2 _7 g1 X5 I when <constant_list> then
& o( ]9 f* M- Z" X. W8 }5 ` <statement sequence1>;
& _) W: |4 m( i1 T2 V" J# v when <constant_list> then
: f+ J5 J' w5 e1 }8 x3 I9 | <statement sequence2>;
- E0 w8 h3 W R+ ~ ...
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<statement sequence3>;
/ g3 x. t- t$ v: ^2 p/ ] uend;; W6 O" g k H$ j0 {
- j3 G3 C$ s) H6 U6 J4 U8 A( o! b; F, q2循环语句
) N: G3 z( p4 j7 V (1) from <statement sequence1>
7 W+ F$ T0 n7 Y R, k until <condition> loop2 g) \0 F8 [4 g1 I6 V& |: y
<statement sequence2>;8 ]+ f. K) @9 Y! b9 D2 [+ n! ^
end;( n, I8 V0 |0 C' n! B5 B. \( v; ?
(2) while <condition> loop
- ~& {% W# I/ @% ] <statement sequence1>;
( K" t/ d6 a w: b; t' Y/ t1 p end;
1 e) n0 B9 _: e; K; _ (3) repeat
! e( D( U! x/ y2 m <statement sequence1>;2 o% L5 q' c2 u S, g4 ]% E* h' M0 g
until <condition>;9 Q8 Z* j3 x, S) N' ?
(4) for <condition> to <condition> loop9 p1 s+ |: g% b
<statement sequence1>;
7 w: d6 ~) ^# ]6 \4 W next;
3 i, W$ ^, Z8 e3 W3中断语句
% T# L5 z" j& |/ r7 R) h waituntil <condition> prio <integer expression>;- J8 Y6 [% `! S# m
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' Q7 e8 a4 B0 Y8 e. b6 Y以上为常用的函数！
- i/ l- ~( J5 ?, t; d) Q还有很多，如有需要我把资料发到你邮箱里
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