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发表于 2012-11-13 08:48:12
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1判断语句' k! F8 u X' q( z
if <condition> then/ _! b, s$ }" q, L) Q6 W6 o
<statement sequence1>;* H0 r) \( \6 D6 [/ \4 l% G2 s
elseif <condition> then
$ f3 V% N9 ]; G$ q <statement sequence2>;
9 o7 P% s4 J- I+ r, H. N else
$ y( w% v8 w+ x+ U, Z <statement sequence3>;# f4 b) s4 j$ P1 ^( |; x( _' S: Q, N
end;6 |! g7 N7 i2 ~
如果分支比较多，用：
0 `( j* Q! N* V5 c, ~ inspect <expression>+ q/ s# I7 ?% a5 n
when <constant_list> then
; h- p x. t) T) m <statement sequence1>;
( y4 v: C2 }, F1 i% ~/ h when <constant_list> then. K# r* h0 j0 g5 v& r, _
<statement sequence2>;
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else* T. [$ ~( S, W3 x; T) O$ |+ y
<statement sequence3>;4 i5 w/ r8 E8 p
end;
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2循环语句 B) U. u4 {% l7 t7 C" e& h
(1) from <statement sequence1>
" \, `" P, Y! z$ l: u until <condition> loop" j9 G* F; K K$ q
<statement sequence2>;* O P5 t4 {" o, z5 S2 ^; d5 z' i
end;
0 o8 q9 ]- ^2 W3 o* V" A0 X (2) while <condition> loop5 ^& Y/ q. C, h6 [/ J7 t
<statement sequence1>;
2 H# \6 e. i' `) S end; I1 e9 C9 V2 _: Q
(3) repeat % F+ E. E% m7 `, @
<statement sequence1>;
9 ^1 S; l0 Q2 y5 |! O4 p$ I until <condition>;
3 k# f- G1 h- u6 W. ]% p (4) for <condition> to <condition> loop
) }5 e: e; [7 D( x6 D: h9 N$ c4 H <statement sequence1>;
8 O/ _5 [! c& c0 G4 p% j5 F( } next;
' S- G5 g9 g& J3中断语句
5 b. }" j& Z; L6 u waituntil <condition> prio <integer expression>;
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+ @- j) j t9 `8 N$ h3 x
$ |: ~1 l+ \- C0 p: h+ A' _* ?3 M以上为常用的函数！7 G7 q7 M5 ?: f9 S
还有很多，如有需要我把资料发到你邮箱里 $ i8 v4 x6 l* m, o& p
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