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发表于 2012-11-13 08:48:12
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1判断语句5 \2 J( B; G% B; e; }) z* E, n
if <condition> then
6 k a% j% k! Q: @9 b L <statement sequence1>;
0 D$ r$ ?( i6 }" ], [& o4 v: w elseif <condition> then
0 U4 U* R5 P( G/ y <statement sequence2>;+ I& j( |. g5 P$ Q( P1 g
else
+ b7 h3 A; J$ G6 S0 d# v1 n <statement sequence3>;
' q) Y; ?- _' g5 a end;
) D% P" q. q7 s6 D2 O$ P如果分支比较多,用:9 r4 Q* ^$ Y3 f: G0 o' H, K( W
inspect <expression>0 @" T' l* z, H+ M2 @! f
when <constant_list> then+ _3 ?+ ^8 p, c2 \$ \4 L$ ]
<statement sequence1>;
/ N# f, v3 {- Y, U+ P. j" _ when <constant_list> then
3 V, D2 l9 G; m+ ^% i/ q! k <statement sequence2>;0 {* B) Q5 d' w r3 s
...
: m \7 x$ O) |$ n; G2 [! \ else
S" S# J& l% w9 @ <statement sequence3>;
, i' \5 X2 i1 ^; d9 Aend;
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2循环语句- @' ^* K* J8 T
(1) from <statement sequence1>$ o* ~1 {7 z8 G) ]6 r
until <condition> loop8 y8 N: w6 N9 p9 ^( X4 c' R
<statement sequence2>;$ p7 X0 q6 j; H
end;
4 a: ^) C$ L$ c& [' L( X, L2 K: S (2) while <condition> loop* H- a) {: O0 T5 `2 e: q* ~
<statement sequence1>;, V6 ^* n0 _6 u) W5 i% Y9 ?
end;
3 d. [4 R$ U9 t& b+ H (3) repeat 4 V" x% N. e8 {% A6 D, F# R; f8 f+ G
<statement sequence1>;
F/ p- |7 I; ] until <condition>;
0 o1 o3 U# Y/ x# {4 ^( V, c (4) for <condition> to <condition> loop9 _; Y# e$ Q3 m y" f+ ^, o+ T
<statement sequence1>;& ~, i& W* k6 t" s9 ~
next;
: H) s# P7 r2 X+ k3中断语句+ s$ }4 x: }, j$ x9 o2 J
waituntil <condition> prio <integer expression>;
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以上为常用的函数!: z1 L E6 Z& B, N+ G3 i; |
还有很多,如有需要我把资料发到你邮箱里
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