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发表于 2012-11-13 08:48:12
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1判断语句 O# z' L. x' P1 w9 T$ j' g* ]
if <condition> then
. r/ z5 R7 _# ]( x <statement sequence1>;
' y! N3 K# q' }1 O5 h- V elseif <condition> then
3 N& N3 ^6 l. H: W9 ]$ ` <statement sequence2>;
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<statement sequence3>;2 q- `; i0 o! T* R
end;. Z8 Q! i5 o0 T! I! r' y6 J
如果分支比较多，用：
2 b% E3 Z3 M8 f. ?9 j inspect <expression>4 ? s9 j7 L8 q; ?) X# \% A
when <constant_list> then
! d$ l) `" N" }; w/ D <statement sequence1>;
4 b4 [2 h4 M) Z+ v4 e( j when <constant_list> then% b7 h! \2 y" S# L0 X# P2 T% ]" u" S5 V
<statement sequence2>;
; X. ~/ G; g; R9 R ...
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<statement sequence3>;
- T: m/ q7 Q, A/ l' }; m/ u$ K" kend;. b5 P$ @6 |% E/ I
9 y3 P7 \9 I" ^: v+ ?( c2循环语句
1 n: Y- C% d- q4 I (1) from <statement sequence1>! X: q. ?4 O' I7 V8 p
until <condition> loop8 G) P9 y1 `' X) }2 Q' N
<statement sequence2>;
" q+ a- x3 B+ K" S" t end;
) @/ n2 d9 Z* f; I8 u# y, w" I" U (2) while <condition> loop* T! M0 H4 C# y2 A. r8 r
<statement sequence1>;5 y4 ]8 s4 p% U/ L5 f: `
end;0 \9 ~$ N7 N! X
(3) repeat
5 j6 }- _' ^& T <statement sequence1>;1 X* c% t* g0 I, C
until <condition>;
% n( c9 ]4 V7 T$ p; l% s4 i (4) for <condition> to <condition> loop* z$ B# V7 a3 j
<statement sequence1>;
9 u- W: P! B0 O3 j. ?4 O next;2 r) h1 v- f# D- i* v7 \7 R
3中断语句
- ^0 P2 m' v& U& n: ~! o$ c; @ waituntil <condition> prio <integer expression>;
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以上为常用的函数！" U' ?9 @3 \8 ~1 r- H2 R9 k% z3 K. J
还有很多，如有需要我把资料发到你邮箱里
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