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发表于 2012-11-13 08:48:12
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1判断语句
/ r8 u2 X/ V- N3 t( A( B0 ?! K6 U- H if <condition> then. a: t; M9 A$ j3 V& k1 x
<statement sequence1>;
6 R' N2 S# J: i2 h# z( B( F elseif <condition> then
+ U) L) T0 g( ^- { <statement sequence2>;
$ G6 {5 v) k- Z$ w3 i else ! Q. X3 |* f2 O9 d) _* u6 I& r) U! u" m, ^! c
<statement sequence3>;% _6 U7 J' ^2 d( ~1 \8 u
end;
# _1 \0 ?5 K3 B! a) N p& S& m如果分支比较多，用：: b7 N: t) K+ u( T' P2 n) A
inspect <expression>
l8 t/ r1 X! a1 G% u- t* s1 Q$ { when <constant_list> then
6 c" t' @" P3 y Y% f/ q! [; g; _. { <statement sequence1>;6 s' C' ^) i6 h; Z8 h3 v8 }$ O k
when <constant_list> then4 e/ n9 o# i: u: \
<statement sequence2>;
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else* Q3 q; K& b8 P% \: c
<statement sequence3>;' \( e3 S+ S( J/ R. s Q
end;
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9 V" g5 _& u% N9 m [0 q2循环语句
$ m& M( H# i1 S& k8 ~ (1) from <statement sequence1># k5 V: k# Y1 j7 t* Z2 W9 U2 t
until <condition> loop9 B/ e8 d3 [& z
<statement sequence2>;
! @6 Y- y4 l# d* N k$ o3 [5 L. L end;
7 [6 h# j: O8 N" l* p (2) while <condition> loop
6 b K" ? x1 m7 z- w <statement sequence1>;
1 J2 e% m9 a4 n. X: t+ \* o: r) |7 M/ O end;
. r' Z2 J3 z2 n! c, x5 q1 T0 O (3) repeat " F6 f6 e/ b& E3 _. H+ A
<statement sequence1>;/ D/ p4 J- H. F/ t# x9 h B
until <condition>;
1 j: @' ~4 R. {. n3 [ (4) for <condition> to <condition> loop
& O) f4 w8 Q3 s! O ^ <statement sequence1>;" i& f4 h# `' Y4 A" p* Y/ q ?
next;
' d$ K3 c) ?- ?8 W3中断语句1 o4 L* V n* S# W' ~- h( @% a; Z
waituntil <condition> prio <integer expression>;9 `8 ]. o a/ }& Z/ L6 w! B
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以上为常用的函数！
3 x7 ?% U% g; P' t" r6 ~* M; h还有很多，如有需要我把资料发到你邮箱里 ) d- z& T4 K! H' g6 n
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