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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
8 [7 X( S+ |. g3 e* P) p+ c if <condition> then% _5 b# V# T& W( Y/ F7 Q ~% a
<statement sequence1>;4 w* _) W, g9 v; }5 Z
elseif <condition> then
4 I# T9 e0 w' {' B! _7 J& D/ \ <statement sequence2>;. x! p& g3 ^0 Z. D7 k
else & R! p3 c7 l( ^. ^; s1 f- N
<statement sequence3>;9 [8 {# x: O/ x
end;
1 r/ s+ u" n+ J0 W2 m$ M如果分支比较多，用：( {' T; M4 N/ a0 o
inspect <expression>
8 t& @5 V6 s: ~% o0 o7 g: F when <constant_list> then2 I/ u* F! A# W: X( N& B
<statement sequence1>;! p- J3 J+ T1 p6 ?& h& t
when <constant_list> then9 V& F7 |# I6 t$ T
<statement sequence2>;
" H# F m& O1 V( _& d8 Z9 ~9 s ...
1 f. n1 h7 i9 w$ u- E else: [5 r- y' Q- f9 E* |/ m8 L2 z! {
<statement sequence3>;3 }' W" }( H% \' |3 n) c2 E* P
end;$ B" d% f. D- \. p. _7 q' P5 ]' f3 W- ^
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2循环语句
8 ~/ N& L8 a6 F% ?3 | (1) from <statement sequence1>
: z6 |4 o: }) [6 F5 i until <condition> loop$ }7 P N3 c) O! R& F+ z- y0 Q
<statement sequence2>;# r6 N) i* y8 ~% U/ l3 Q. @
end;% l2 N- K+ {0 m4 [5 g/ e- L1 ?
(2) while <condition> loop, N9 K5 N# `" o2 U! d4 o/ t) Y
<statement sequence1>;
& l. G. Q5 u4 N( b/ [ t& T end;0 d. j' C( ^ N6 w8 H% v5 p
(3) repeat 7 r/ A8 x, f2 g0 t t5 o
<statement sequence1>;
9 d. M6 ?7 u: R/ n7 |, Y5 g until <condition>;6 w, C |5 [. b& y( [+ h3 X" ?
(4) for <condition> to <condition> loop2 w9 ?* R. v' ]) _
<statement sequence1>;
+ K! d) e/ j/ F7 l/ |2 ?$ W2 y5 K next;
1 K% @, e- P& A; {: G; B3中断语句- ~, x' O- t0 ?
waituntil <condition> prio <integer expression>;2 y( ]5 {1 a8 e
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' q0 o \. c9 L以上为常用的函数！
5 U; u0 c' c0 X) Z5 P还有很多，如有需要我把资料发到你邮箱里 6 T! X5 ~8 N2 g y2 j6 A- i
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