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发表于 2012-11-13 08:48:12
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1判断语句
7 r- |9 L0 w- F+ {7 N if <condition> then
) K7 U8 S* z8 P% n6 w$ ? <statement sequence1>;
1 x" Z' M! M% g, o0 r% a elseif <condition> then' ]- o( a0 Q8 ?2 N( I; w e4 a
<statement sequence2>;
* @/ H7 z- X3 Q5 Q" D6 X else , Z) a k$ J1 I; C
<statement sequence3>;% j f7 F$ _9 f q: Q
end;
/ t- J! ]& d$ A如果分支比较多，用：/ H. ~/ a1 G$ z. c; D! `9 Z6 I
inspect <expression>
# W J$ ]5 _$ V8 m0 e/ U when <constant_list> then4 D! q# [/ z( Y7 u
<statement sequence1>;
7 p3 j1 j; N `8 m2 ^; j when <constant_list> then: c" l1 n# O( ?5 e/ X2 A
<statement sequence2>;
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else
; b" a9 M1 J' \- I5 e+ `, o <statement sequence3>;
; i3 G1 ^% g. f" X) d* ]# i6 Xend;: A1 ]4 m+ P% F, y# t
5 X9 C% n- _. v1 y2循环语句
9 Q. P6 g% V+ v! D (1) from <statement sequence1>8 h v# j$ e! l6 d5 N7 W; c0 |* {
until <condition> loop
8 s6 |2 f: }9 c) N' Z, {8 T- }/ ` <statement sequence2>;
" `: N4 f* t5 h2 M* t7 p9 T end;+ ~7 K8 Z3 F( ]
(2) while <condition> loop+ k. A2 S* C, g2 W4 B
<statement sequence1>;0 J( ~$ l1 {( u1 ?2 L- t8 D: a! n& ~- I
end;
5 Q. n& ^1 |, w- k (3) repeat 3 s: ^* h) D3 O8 w$ E: d0 U
<statement sequence1>;) O( e* y4 s+ b- w* R; [8 ~
until <condition>;
' B& `7 ?$ g: r }, u (4) for <condition> to <condition> loop* ~' }5 u: Y# ]5 j# e
<statement sequence1>;
# t h+ b8 g9 r3 T0 [" Z* E next;
- O( V+ U/ A+ ~: k& G) _& ]3 j$ l3中断语句
; B1 U3 E2 f/ n8 X# \5 H# @9 Y waituntil <condition> prio <integer expression>;
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8 X3 p+ N X5 E- g' C6 r以上为常用的函数！
. B6 `' X7 k, I9 T" Y还有很多，如有需要我把资料发到你邮箱里 3 Q F# [) A# b
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