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发表于 2012-11-13 08:48:12
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1判断语句
6 @. Z! U" C/ m) o& A if <condition> then! _" F- W% a! x3 U1 F- w4 [
<statement sequence1>;: L/ `0 m* U4 \3 G! o1 _5 l9 @
elseif <condition> then+ S X$ E0 O1 V" Z# i5 \8 n
<statement sequence2>;' d( O [0 @- Z( x* ~0 s
else " x9 x& x/ A5 m$ s# N: w; Q9 k8 H( d
<statement sequence3>;) c) Q7 o# l, p5 c
end;0 \( ]$ a2 s: E8 I5 [7 X
如果分支比较多，用：' v0 s" Y- R% i; G( L
inspect <expression>
3 p/ l/ B/ \0 A) F" f, ^8 X when <constant_list> then% j( Y$ }/ l& ]
<statement sequence1>;
4 u. i" Q* W- G; |7 m: P when <constant_list> then0 i+ a$ k; Z$ M3 w7 L
<statement sequence2>;6 |: y, ~4 ^" v/ @) d* @
...
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<statement sequence3>;8 F3 m7 M* s/ a% s
end;
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7 s, t# n( t: d' L+ c* Q* K2循环语句1 n9 u+ q! W7 A, N+ O
(1) from <statement sequence1>5 _1 a4 t: T" w; E, }. D
until <condition> loop
; x( W$ l) ~9 n) n$ y5 l: G <statement sequence2>;- Y( I$ v$ D+ l9 K% ]# w
end;
. I7 W6 B, m6 l' T+ X (2) while <condition> loop3 G- z7 R# D( ^% R, `6 s% A! s
<statement sequence1>;: m" q( i8 v9 i/ U- y
end;/ T& M/ d+ N" U8 K5 B6 \+ s; Q% i# ^
(3) repeat
0 v0 K8 t* x% h. V2 I* E <statement sequence1>;" I z- J5 o5 x1 n2 n9 {1 R. A4 J
until <condition>;
# i. J z7 v0 t: F% G Z (4) for <condition> to <condition> loop
2 u. C8 _- g! c <statement sequence1>;
% M. E/ k) J" v* B8 x) s& U0 d) g0 G next;
7 p' s4 I5 _0 i8 h4 E! W0 @. a3中断语句
+ G+ a: G# s1 h0 T$ I4 l waituntil <condition> prio <integer expression>;
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/ P" S- n' K0 ?5 U以上为常用的函数！5 U& r2 k$ i! V$ r- |% L. b8 G
还有很多，如有需要我把资料发到你邮箱里 5 N8 t- P7 D! y" q; I1 p
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