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发表于 2012-11-13 08:48:12
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1判断语句! D% U Q- `5 _
if <condition> then5 a+ |9 ~8 h3 Q* G
<statement sequence1>; d$ U l6 N8 g& g
elseif <condition> then
$ J c! i9 _. g8 }5 x <statement sequence2>;
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<statement sequence3>;6 v! j$ `7 J! S1 x' H( b% O
end;- u& k! T. Q9 {
如果分支比较多，用：; p2 M. F: P, n( ]7 g- W+ D, c( H
inspect <expression>0 y) u, m! O. G+ d
when <constant_list> then6 G: z' d; K, b' [6 ^3 N4 w0 J9 W
<statement sequence1>;3 _6 a: k/ n7 T1 K! ~. s/ B. w
when <constant_list> then
9 o& {* k. J$ d- b& C: N <statement sequence2>;
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<statement sequence3>;
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0 O/ m1 C: _* ~0 l2 v. B# i1 g2循环语句
2 g- c: |0 [1 b2 R/ s. Q (1) from <statement sequence1>6 Q$ j, V+ n' m
until <condition> loop
0 m( n6 \7 m+ v Q <statement sequence2>;& \. m- z5 w% D
end;$ d" D( g) z3 N6 e
(2) while <condition> loop8 }# d' {3 K6 p' ]7 F
<statement sequence1>;
: P: E0 _+ k1 N- m end;
4 N, \/ d, H- O; u (3) repeat : j; }4 W% Q; u% m+ z& S \
<statement sequence1>;
. L* b% F" _2 k. {5 B& S until <condition>;; i2 ~; D- g4 a& e* H. \3 g0 R
(4) for <condition> to <condition> loop, c- {+ v0 o# n/ c+ o; y1 e
<statement sequence1>;
: V( T) E* S R1 C+ d9 S next;! ~+ Z* H& u2 F& w$ R/ t& g
3中断语句
9 J/ Y1 b% H( v) B+ |8 [1 n4 e' H waituntil <condition> prio <integer expression>;
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6 f# ]; k4 c7 ?* H# {, i以上为常用的函数！. s* W* C& d3 W/ P6 |- Q; J, t6 L
还有很多，如有需要我把资料发到你邮箱里 3 Y+ [$ ~7 Y1 E6 h$ f [3 x4 D2 _
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