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发表于 2012-11-13 08:48:12
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1判断语句# |0 R3 v4 o* Y; k# C8 d! e2 ]' c( R
if <condition> then3 n4 H+ \( u3 d
<statement sequence1>;
% q: N; c( E$ ^6 o elseif <condition> then' u4 A4 t/ s6 c0 k* w A$ x
<statement sequence2>;
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<statement sequence3>;
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如果分支比较多，用：
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when <constant_list> then; m3 M, \' K) I9 T: C
<statement sequence1>;3 ]6 w0 d4 m5 v: u/ z
when <constant_list> then1 ^* @" ~: P" Y% D' H8 y
<statement sequence2>;) e0 P% ?+ j! |. j4 F( u2 h
...
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<statement sequence3>;" I0 n' W9 j9 [5 O" L# j0 M
end;1 T/ Y5 _8 H# p
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2循环语句6 [4 H* Q+ K7 f
(1) from <statement sequence1>- e( g: b( ]) f0 n+ o
until <condition> loop" p$ b: s2 z2 j! W- o
<statement sequence2>;
% U: F- p7 L& L/ \ end; J! Y& T: R8 q9 ], j, s
(2) while <condition> loop1 k, q* \) {4 l# f. U) R0 x2 W3 @
<statement sequence1>;* b6 a" W) f; f9 k7 N' W: W
end;
7 s; _! T9 z! T: @- O( [2 q/ x P (3) repeat ! r' o7 s* L# `
<statement sequence1>;; h9 o' ^2 p% t/ d. x" [8 o
until <condition>;( ?# U6 n5 ^5 f! ^/ M# W
(4) for <condition> to <condition> loop
" z* x `, x8 e4 i <statement sequence1>;
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3中断语句+ {7 x+ i7 u! K8 _* @; L7 x: A7 \
waituntil <condition> prio <integer expression>;
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! N" u1 b0 r& q+ C以上为常用的函数！
8 ^; G( F, z' j0 [ u还有很多，如有需要我把资料发到你邮箱里 8 w: j7 O0 D0 e5 L
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