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发表于 2012-11-13 08:48:12
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1判断语句; i4 f( W! p) x: A5 ]
if <condition> then
6 V5 m5 F: c4 I <statement sequence1>;& G9 V! D1 t% r
elseif <condition> then0 O1 G, G4 g( Z, K R4 ~
<statement sequence2>;
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4 u+ J: ]3 T8 D# C. N" j& N7 h* b <statement sequence3>;. e% W4 M3 f6 Q* f$ m2 k9 K4 ^7 H
end;
; j; O Y7 C7 D; N如果分支比较多，用：
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when <constant_list> then% Y1 _3 R+ u, \8 D% o9 s
<statement sequence1>;
@. c7 k. J3 l8 X when <constant_list> then* c. O3 c' u, d7 j3 @7 d) R
<statement sequence2>;; n6 u( {0 ^- u0 @
...
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<statement sequence3>;
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2循环语句
/ g# O6 {; v' N' Q& F8 D3 r) _ (1) from <statement sequence1>7 ^; `8 m5 P3 @8 \+ K7 ?7 l1 i
until <condition> loop
4 T8 l' P$ T+ t: m; z, O <statement sequence2>;
6 g6 P# o' L7 ^ end;
( c# |) A1 Y+ ~+ |0 \ (2) while <condition> loop( W1 u6 N4 \( B$ l1 D6 a
<statement sequence1>;
6 ^# m2 ^4 S# l2 m end;
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<statement sequence1>;- H9 V, T1 x* `) ~! J( T$ i B* V8 n+ n
until <condition>;3 b m) d: W& I6 w7 p
(4) for <condition> to <condition> loop
; ^ k2 g+ H5 e& t4 c <statement sequence1>;
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3中断语句
: p" ^: l1 i! L waituntil <condition> prio <integer expression>;
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' k3 R( E6 ^- L& e3 U ^以上为常用的函数！
8 m8 R1 @- Q8 Y+ P" k3 ^' u. S2 ~: K还有很多，如有需要我把资料发到你邮箱里
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