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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
/ p! `3 m x* M if <condition> then8 B0 G/ b/ `# y- M; n, A
<statement sequence1>;# q" b+ D$ \; a: D' o' U& Z
elseif <condition> then
: z% @- j* z+ p6 Q <statement sequence2>;
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<statement sequence3>;
, Q, D% o0 o7 P, ~$ ~+ J% e end;( g8 k9 O; v: O
如果分支比较多，用：
3 C: b( w+ q2 A" i' R; N inspect <expression>7 M# y& ^) q4 ]! ^& A. E& Q6 ~
when <constant_list> then8 R3 v+ m ], D5 R" G4 o0 J! I
<statement sequence1>;
% v2 `" X& x) S4 ?' O. a0 l4 a when <constant_list> then
% x) D, h7 c( h W' l! k$ ? <statement sequence2>;; u" n! }% {! ]0 ]
...% T4 ]& ~6 l* n$ h
else2 i( {% ~$ ]8 }- e
<statement sequence3>;+ U f* H# w8 h8 n
end;4 X- @6 j; e" D6 J
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2循环语句9 Y* O# f2 n; ^
(1) from <statement sequence1>
* Z i5 r9 e4 a& H; a- o until <condition> loop
e& A! E+ S* v& e, i4 G J. p+ L <statement sequence2>;3 Q$ M. U$ \% w& i) [' |! B0 w
end;
6 R: _: @; m& l: A (2) while <condition> loop0 [+ N8 s( D2 G2 O3 e. e
<statement sequence1>;
+ D; g9 ~; ^5 l+ x- @7 ?5 A& t end;
& _* Q9 I4 {& _6 @& o (3) repeat ! Z, N* O& o9 V
<statement sequence1>;
e5 w1 P$ K! ?- Q until <condition>;
- |' R4 Z$ I6 V (4) for <condition> to <condition> loop
1 N5 `* u0 t5 c, T" q- G2 ^ <statement sequence1>;8 r- S* u0 f+ @8 U$ Z7 o' K
next;3 b7 Z, J+ `- }% n2 ]
3中断语句
3 f( R5 O9 Z5 z9 X waituntil <condition> prio <integer expression>;; E( a2 Y% K2 m# u
2 d5 c* h: m, N5 N* g9 q. A
' g# d- z0 B& n/ \* l2 H I% u以上为常用的函数！
% u2 k- F( g; G. M: I: f: X还有很多，如有需要我把资料发到你邮箱里 : W+ r S/ ]( ^6 k: b
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