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发表于 2012-11-13 08:48:12
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1判断语句4 z' q/ Q0 P. Q
if <condition> then! ~, X+ |% M8 ?! L0 i
<statement sequence1>;
$ c0 U" W& @5 l \* b x/ | elseif <condition> then
$ o$ m0 b) v% P. Z4 i- P; r <statement sequence2>;
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<statement sequence3>;
* M% e% I' ~0 V) s end;
* P _, @1 [! v如果分支比较多，用：9 @6 q* `8 U( e
inspect <expression>8 B$ g/ P" t% N, ?+ x" o
when <constant_list> then
, n4 W* `% `4 R$ e8 L, ]& I* d <statement sequence1>; Y- E9 h: P( K! ^2 [3 z) W! E
when <constant_list> then
3 Y& C* W- n2 U: r* V1 M& ^ <statement sequence2>;
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else* C2 n! ]; G5 n) j) t
<statement sequence3>;
) ]; y% t# f: X1 n& B7 |( r, ?end;
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2循环语句/ |# }4 P+ ~! q+ \
(1) from <statement sequence1>: b9 N3 @" i# ]
until <condition> loop" D( h8 T$ k& P
<statement sequence2>;
4 i2 r- e& `4 D8 j M end;8 x, q9 ]! Q2 r2 J
(2) while <condition> loop
* L I0 P- s2 F$ y+ d8 N8 Q" z <statement sequence1>;) q. X; e0 d6 J- B. m4 G
end;/ j$ H* r: u* [4 V8 e) H
(3) repeat * C" Z3 Z# W* C( ?1 x3 Q7 V' R6 f9 g1 a
<statement sequence1>;9 B1 @( m& S+ C( a( H! s
until <condition>; p/ t! d9 {8 @. \8 U; v6 B, A4 d
(4) for <condition> to <condition> loop
0 ]0 P+ j. F8 F P: N <statement sequence1>;# t; Q8 f% {1 e
next;# W7 m0 ?' ~ U. b4 L0 N8 X
3中断语句3 s$ i! P- V+ d" T+ n
waituntil <condition> prio <integer expression>;" S4 r7 a, U* u" d; ^
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以上为常用的函数！
4 x; F* P- O# Q( f2 @还有很多，如有需要我把资料发到你邮箱里 ' H6 x/ s+ `% g+ S
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