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发表于 2012-11-13 08:48:12
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1判断语句
; H+ V" W2 i: r: r; t if <condition> then
' ?' D8 i1 z/ L' E <statement sequence1>;# r0 F& ~" i9 C+ Q# c/ Y, Z
elseif <condition> then* e' ^* V& d6 G! V6 u0 S
<statement sequence2>;. Y, ?# H7 T' u9 I, B) w. ^
else
& x, y, L1 G5 ]6 z7 O4 D <statement sequence3>;
. F* v& w ]' j; t end;
2 d1 f, `% [7 D8 i: j5 U如果分支比较多，用：
4 I# B" ~. y. ~" @1 M; @ inspect <expression>7 a: w) s' j _! ^6 m* d
when <constant_list> then
4 [( o# |1 W! O& V <statement sequence1>;
% @# g( v# v: [1 y# k when <constant_list> then
4 D# A( ~% t2 Q/ | <statement sequence2>;
7 J0 h; ~, x: r/ n ...
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<statement sequence3>;
$ X4 U& C( V% p2 C1 c+ {, z9 _7 t! Eend;
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2循环语句
- e/ C+ Z. M; C6 @ (1) from <statement sequence1>
/ E- z3 y" l% u% g" i until <condition> loop6 v$ q( N6 E) A2 G& P" y: s
<statement sequence2>;1 K, z; m" J9 }* Z- B8 s' d
end;
9 A: ?0 C' _/ w5 a* a8 a (2) while <condition> loop. j1 L/ h8 I; Q" D$ z1 |
<statement sequence1>;. I" X' J% W$ _& i+ w6 D/ W
end;
# W" D2 V- f8 D: x (3) repeat ! d, f# m' e( R
<statement sequence1>;
7 `! T% l0 ?' Q ^, k) o9 ~ until <condition>;
, |4 B: @' G, s (4) for <condition> to <condition> loop
S3 u$ ]( J$ d <statement sequence1>;
0 R& c' x8 o R- E3 F& E# a! x next;
7 ~% K3 S; n R- f3中断语句2 t8 }: K; j. C; ?
waituntil <condition> prio <integer expression>;) C% n2 \6 B e; c" f. s. o
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以上为常用的函数！+ @) K& f4 `* e( v' p' l: P' c
还有很多，如有需要我把资料发到你邮箱里 4 ]* O7 N" P" z( E$ `7 j( f
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