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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
' N8 p6 q" i% Y3 w: y if <condition> then5 U& [( ~% [8 \
<statement sequence1>;
- f; O+ P# g1 m8 I elseif <condition> then2 G# W2 v8 x, D
<statement sequence2>;
& [( B! y& V4 \8 m: R) z9 q else
0 A; D0 F6 y- J/ `) t <statement sequence3>;
3 W2 P/ J7 t6 V* v) L9 V! _. t end;
3 F8 A: z6 u' I9 N. c; q如果分支比较多，用：1 Q9 x9 v3 X, c$ W$ F8 o
inspect <expression>
. g/ y' C% Z8 H% G- H2 l2 r/ L when <constant_list> then
% E0 d2 J2 t! z. N <statement sequence1>;6 I. y8 n. ?0 _+ I
when <constant_list> then
- v, Q2 n, \( b) j2 K# Q <statement sequence2>;
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else( T. w& M; Y6 w, W: c7 S$ [
<statement sequence3>;
9 V c# n2 R) n/ S8 Iend;
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2循环语句( a1 o2 P/ d3 o4 V; O+ s7 Y/ I3 q- _
(1) from <statement sequence1>
1 ]' d! ~8 W2 x/ L z" C/ I1 ~# Q until <condition> loop- q; K: L/ a; k6 i
<statement sequence2>;6 X s+ A, N! @. `, Y
end;
e0 q! Z" U( v, ?; t' B3 Z (2) while <condition> loop
9 Z3 I0 Y/ k' B2 \ <statement sequence1>;1 b" K) c6 ]* N( m6 i
end;
) Q; N; b& e0 [0 z4 a6 Y3 p (3) repeat 7 z' A5 l- z7 W5 p& ^
<statement sequence1>;9 d( z9 b" ~) e
until <condition>;% d+ S! V* d. ?% T8 a) k) f
(4) for <condition> to <condition> loop4 J1 T" n- n# C9 R* k6 S' T
<statement sequence1>;
) \: m$ ^ j! {1 I( o& v next; r v; t4 @1 P6 M& F0 h
3中断语句. B: o2 c6 ]& i5 S! l
waituntil <condition> prio <integer expression>;
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8 X# T7 X7 ~( Y$ ]8 g2 p; h
以上为常用的函数！' Q- Z1 S3 h8 K! ?' v
还有很多，如有需要我把资料发到你邮箱里 8 P' O) N9 m& n: V/ T% i3 O
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