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发表于 2012-11-13 08:48:12
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1判断语句5 G7 l/ a* f% P4 W
if <condition> then
. @: H; g( G& N <statement sequence1>;1 f: Q4 ~( b) `
elseif <condition> then' s3 I" E J# s. s( {" o
<statement sequence2>;
, `4 p9 S0 O' ~1 d! A) D6 J& O else
; V3 p! S# U8 Y3 f& B8 W1 A <statement sequence3>;# U5 z9 F# w6 h$ N1 B0 j4 L
end;) ^8 \' x; b2 \9 D. E
如果分支比较多，用：6 P( O+ j* p0 P) C6 ~7 v' Q' C4 J
inspect <expression>- }/ K5 J/ i' m* v& I# Q
when <constant_list> then
/ U+ V4 _4 V. \& u6 g8 D5 l: Z. p <statement sequence1>;
0 W2 u8 p3 w: w" \ when <constant_list> then% S& L9 Q4 c6 s) [6 A
<statement sequence2>;2 A( H- z7 ~# Y
...
+ n, M8 g- w. \/ S+ d0 P else
6 B+ @# Y( w% V <statement sequence3>;9 |: B# L* _+ D2 J3 \9 R+ I
end;
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2循环语句
7 @* f3 j* z) H) X7 @ (1) from <statement sequence1>5 L+ b" @. V5 M- z9 z8 y
until <condition> loop
& R8 n- w) V) x <statement sequence2>;# i- R* j( M1 g, }
end;
" \9 q' G5 x* u% U% w' {2 ~ (2) while <condition> loop. S5 }5 T. g1 U# V
<statement sequence1>;, ]9 ^" @ a' E5 k' ~
end;& ?) a/ c( C; H
(3) repeat
# o6 |7 {( ]% Z7 p1 K, k# f <statement sequence1>;$ C2 K7 h6 _- a$ {2 I) s: Q
until <condition>;
. j- f! a5 ]/ E: D* T9 i (4) for <condition> to <condition> loop
# m" n4 t# O, {0 Z7 @+ {% | <statement sequence1>;
' ^) @# k$ ]0 N0 c next;% ~4 a+ g h5 t
3中断语句
) M& S- d) Y0 Q; q6 Y waituntil <condition> prio <integer expression>;9 X2 a* i* k" P) D2 w
, p/ C! Y2 n1 I, _5 E' W) A
- o1 Z/ P2 d1 c! _' {以上为常用的函数！0 E x" U6 V' |$ t
还有很多，如有需要我把资料发到你邮箱里
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