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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
( \+ t6 v7 Q5 O if <condition> then
1 O8 y1 w6 |( u- m) B* v7 L <statement sequence1>;# b! ?8 O3 r E) T, |: k
elseif <condition> then
$ Y$ N+ b4 i/ e) w" o <statement sequence2>;; f* d% ?6 u4 s; ^
else 8 J) e) R$ n( ~
<statement sequence3>;
) E- B1 |- Q3 V& b" a- p2 ] end;
+ U. s. _) I& @" o如果分支比较多，用：) j* R9 o- ], T0 S* @, q- l1 `8 ?
inspect <expression>
1 P3 m: k( Z! ^ when <constant_list> then
, a Z) q7 w4 Q! ]' R; T <statement sequence1>;
9 E m& g2 _1 F6 K B when <constant_list> then- A% R" P k# N, k7 c
<statement sequence2>;; l* y5 s7 z& w3 \/ s1 n3 m
...
8 I% O0 b, X% ^* u& J else
9 q( X$ z& R' U" ^8 g <statement sequence3>;
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2循环语句
, ^. ?$ N; L" v (1) from <statement sequence1>$ R% Z& k6 O6 j- Z: Y- g* k
until <condition> loop
v* |# w" M! R" p! s& i: \ <statement sequence2>;/ u& R; v& i+ x
end;- [/ w' X- g2 k, c3 U; ^
(2) while <condition> loop
L* J1 }8 J+ T% O2 k% k! z( P <statement sequence1>;
4 y: k3 i' @3 ^2 M; I end;* m. y" t4 f, U6 L9 L. v1 f
(3) repeat
3 _5 k! u# M) [$ D) { <statement sequence1>;: e! t1 x2 {# |3 y
until <condition>;
/ g o' a( {% g/ y4 T- A (4) for <condition> to <condition> loop, i! B& H! b# }( @) ?& a/ w7 o
<statement sequence1>;9 M2 S2 w% m- a; h u
next;
: M0 e. ^$ K' E& U/ Z3中断语句
/ {1 R6 o/ D1 z, a0 f waituntil <condition> prio <integer expression>;
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* f( D5 n0 o3 t
以上为常用的函数！
& Q. X6 n! }& }9 x% `还有很多，如有需要我把资料发到你邮箱里 0 C0 h2 ~' H' @: e" L. b
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