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发表于 2012-11-13 08:48:12
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1判断语句$ c! ]" u) ?! a
if <condition> then1 `2 L5 x' w- y( m C5 X! q
<statement sequence1>;
, _ D, y! H5 {3 U5 M g elseif <condition> then( K2 x; ~7 {/ j) F: N8 K
<statement sequence2>;
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<statement sequence3>;
& V$ g3 C7 r' h/ M) { end;
# }" p* v$ r. Q- G! M9 x如果分支比较多，用：8 K0 d: D0 y5 W
inspect <expression>
, K. j7 [ y8 B) L, e" D3 K( W3 i7 ? when <constant_list> then
! w4 f5 Y' c' x <statement sequence1>;
4 O# Q- N* f0 s' f- k% s- B$ l4 w u when <constant_list> then: I M, ?* {8 x a- k6 M. ^
<statement sequence2>;
) e: }5 A% Q4 ?% ~. H# y- y ...
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<statement sequence3>;
* r' S/ ]" [, o( U ]end;
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2循环语句* w0 x( S, r% n, c. m8 S
(1) from <statement sequence1>
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<statement sequence2>;7 A; l6 ~1 c/ W' Y5 s$ O/ _5 J
end;* F; g6 n$ \& t
(2) while <condition> loop
\- Z1 @+ v1 q' |3 V H3 H <statement sequence1>;+ [3 K, D3 ^) H
end;
1 J# w1 i" P; e' Z (3) repeat " \ n, `5 O: N
<statement sequence1>;
* J" r0 t9 r# v4 r$ D( Z; _ until <condition>;
' m4 a4 R; @7 x5 ]" {* Z3 T { (4) for <condition> to <condition> loop
8 g/ F/ F9 q1 M6 w3 e; {) O! L <statement sequence1>;. o" x& I. P6 W3 y5 e+ |; |& v* e
next;
& J% h. Z- G6 G7 }& F8 r. d3中断语句& G' A2 D; `% ^: V
waituntil <condition> prio <integer expression>;4 S$ e( Q( \5 o" n9 Z8 w
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以上为常用的函数！) {* ^2 g4 }- }* F# f, G
还有很多，如有需要我把资料发到你邮箱里
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