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发表于 2012-11-13 08:48:12
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1判断语句8 J6 Z1 m3 N) X. d z ?# W+ N
if <condition> then9 x/ O* J$ a ? @) k& |* O
<statement sequence1>;
5 p) s9 e v$ I8 ?& M$ G elseif <condition> then
$ M k& w! `% c% i! R8 | <statement sequence2>;. X' z. W9 x. \2 @# G0 s
else ! b1 a% L: M' \4 m4 | `
<statement sequence3>;7 Q6 {; G3 j1 h) {. C
end;* e7 n z2 j9 z: H& D0 J
如果分支比较多,用:6 r k- x% f T9 b
inspect <expression>; U, F! d; T* V/ X, S8 ]
when <constant_list> then- N" U& k" e0 k+ p) b9 R6 N# D# T2 H
<statement sequence1>;6 D% h5 q# X: o3 y, r
when <constant_list> then, }6 D S- K- {7 z y! m) q$ V$ {* m
<statement sequence2>;9 G) ~8 B3 H& k$ ~0 t
...) f8 L' _5 l* e( ]9 w6 i3 e
else9 S$ ]8 s/ k- C0 [4 E4 r
<statement sequence3>;& o: U' s, _" _& x' o8 {8 P3 I3 B! Q
end;2 W. X8 w, W7 o( i) ~. J8 Q
s. n( K9 S4 l. A- k2循环语句* S% R$ Q. g& ?, D9 ~
(1) from <statement sequence1> Q8 E- X m' ^1 W* C3 t# O8 e
until <condition> loop
( m* }8 y( s9 b" u3 O- J1 r* R <statement sequence2>;
u$ F! F! |: Y end;0 N% `) j: m W, l+ m
(2) while <condition> loop3 X( i2 S# G' F5 N! d1 [% V
<statement sequence1>;
, q) F4 j/ [" m$ Z8 x2 R end;1 z5 O( x# E, a( z7 a. E Y: v4 V
(3) repeat
+ j B, X6 p" l% A* H! u1 \$ Q' ^/ y <statement sequence1>;
' ]; r, W& U, v6 L/ @ until <condition>;% r* g( L7 O; E s3 `
(4) for <condition> to <condition> loop {8 Z0 C6 N3 p) r% @# c
<statement sequence1>;
( P9 a( n- [; \9 x2 y( a: G5 D next;( G, n+ Y. M" U( y# y1 `7 s
3中断语句5 N8 c$ B q3 k8 U" D% Z6 E2 A1 c' u
waituntil <condition> prio <integer expression>;
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2 A/ n8 y3 U) B2 R0 @! ]5 o以上为常用的函数!
! _0 D# o+ E# ]1 U5 G$ n还有很多,如有需要我把资料发到你邮箱里
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