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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. ^$ n; I6 k5 t: H- \- w& Z8 w- [; k
if <condition> then
q Q- c, U4 [+ G; Y <statement sequence1>; O, G7 D. x+ S3 Z- k* P$ |
elseif <condition> then: s: Q8 X9 c% N% a" @1 c' L' p
<statement sequence2>;
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<statement sequence3>;
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如果分支比较多,用:6 X- k9 d+ N! `# _) J4 S2 Q0 u
inspect <expression>. X' \: {9 _7 ~$ x0 ]; O
when <constant_list> then" y+ |' |. Q8 t L2 {: X2 [, I
<statement sequence1>;4 t3 _# x$ P* z$ {7 K5 X4 r4 ~
when <constant_list> then
( Z* Z+ s# t0 {+ F+ m% ]9 G <statement sequence2>; X2 F! T7 m7 S" w
...
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<statement sequence3>;
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2循环语句
0 p3 o7 }# J* X3 t6 {' A: ~ (1) from <statement sequence1>
2 I" b1 G- P5 a" D3 z* M6 m; _) g until <condition> loop; C, |6 X% i$ s$ _
<statement sequence2>;
9 \ {& M. Q5 Z; v9 ` end;
8 R. t4 Z, F* ]* `) f (2) while <condition> loop( u( T7 a, r" l7 {
<statement sequence1>;
9 f6 ?! E2 M! F3 M! r& S end;
/ v! A1 C" r. {& o% S0 f/ m& j; s (3) repeat
6 u! F+ u0 p5 k/ R <statement sequence1>;* t! \4 P4 \) g+ f {, I. w' c
until <condition>;+ l; l; S0 i- d1 a" J) H* T
(4) for <condition> to <condition> loop5 `. }, r- i8 S. i/ d# \; t; Z: G
<statement sequence1>;
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3中断语句/ i: s' T1 Y! F L& o* k: z2 G8 P% b
waituntil <condition> prio <integer expression>;
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1 H# a9 @9 a& p2 ^以上为常用的函数!1 W' o5 V% h( F D
还有很多,如有需要我把资料发到你邮箱里 7 L. g7 F( u6 C3 k
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