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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; R& D: E7 e0 }/ Z8 I
if <condition> then6 W( p2 E6 V$ V
<statement sequence1>;7 q' d, [% f7 f- I% l. K
elseif <condition> then( k% w% o& a8 k c
<statement sequence2>;
/ E( H$ z, d& \2 C3 i4 S. [0 s else
! e/ Q7 t, Y! _" b( { <statement sequence3>;
7 d* l5 C; @4 S: m( b/ ] end;
h# h L; Z9 W# x1 j如果分支比较多,用:- Z, x) h) f) V# e+ u5 }( s# Q
inspect <expression># o4 D6 c# g: e$ c4 m, f8 X2 j4 z
when <constant_list> then: D& }/ B# G+ X
<statement sequence1>;
) T1 f/ A) Q! Q6 h' L( E) w& M when <constant_list> then
2 s% z+ r+ D. s7 u/ d <statement sequence2>;$ V/ p7 }. a' o. X% B( g4 s
...7 p& J; O) m/ _& N. ~
else$ B3 {% o. S- y+ I. I7 v; b7 w& ?
<statement sequence3>;6 J& j/ m% Q: I3 d7 Q% ]
end;
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2循环语句
3 a. [! I2 O1 @8 J (1) from <statement sequence1>; h' ]% b' L* j' u9 r3 o
until <condition> loop
3 P, G7 a7 P1 [, l. p( `- p: m* O <statement sequence2>;8 n$ e4 A' W* Z5 ?, K# F/ D5 C, u
end;; |; }; ]. ^! I, B% O
(2) while <condition> loop
8 m3 ^% G/ z$ g4 g <statement sequence1>;
$ C" l& c/ h: l1 T6 ~ d& @ end;( c1 I4 m m' `
(3) repeat : e' z. c- _" q4 S2 @
<statement sequence1>;$ V0 m- {7 m c% W
until <condition>;2 g3 r" e/ ]; ]* a# C4 l" w' u( w
(4) for <condition> to <condition> loop
9 f3 j/ F4 u5 h3 ] <statement sequence1>;3 s! w# F! g: \8 `7 @+ l5 `( |$ Z
next;
% {0 P" T# V* Q# v- h: b" g3中断语句& v( m! B* g/ O# B" Z
waituntil <condition> prio <integer expression>;1 d4 B" A& }* G
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以上为常用的函数!* q; ?6 Q" y1 s' e/ Z) n
还有很多,如有需要我把资料发到你邮箱里
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O7 d5 P* r6 ]) w. B9 Z
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