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发表于 2012-11-13 08:48:12
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1判断语句
$ h: u+ c" x0 E% M if <condition> then9 [# X5 i% C! e+ r H1 a
<statement sequence1>;
" k" E5 G9 B9 l' Y( X$ V8 T elseif <condition> then2 Y( e$ H k0 U- g' x4 u# o5 l
<statement sequence2>;
5 Y6 X- r- u% o* K: U- w4 l else $ f! K5 [1 U8 m1 V$ T
<statement sequence3>;
5 J0 T( a0 f- D/ s i7 _ end;7 A( y1 k( q$ z. b% r, G* J% \
如果分支比较多，用：
W7 h) T' I, c# l# T2 s inspect <expression>" ?8 u9 ^) m0 Z5 [6 i$ ~; }
when <constant_list> then
* u. K) {; j, [5 F( B2 x <statement sequence1>;) Y7 i2 L; X5 N
when <constant_list> then6 `4 l+ ^3 ^8 z. _
<statement sequence2>;
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else; h$ }7 r$ Y l8 l4 z
<statement sequence3>;2 {5 u! W) w; k, X$ t- h' P* g
end;
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; X2 h, j" T; `8 |3 e2循环语句" A6 b( A+ R: w% x( ]3 @
(1) from <statement sequence1>
/ t2 i( ?& m0 W" u1 Y until <condition> loop J3 A p( \$ r3 P) c
<statement sequence2>;
" w" H* L" A. [0 u/ M( k8 M end;8 P! E3 j1 `' a( p
(2) while <condition> loop
& e3 H" |$ I* @3 z2 j5 o. ` <statement sequence1>;: i. O% R1 K' r" {2 w% W/ S# I
end;
. O5 v& D5 c2 k+ ?+ }1 \4 E, H4 P (3) repeat
% X0 N2 n+ U, j9 K <statement sequence1>;* ~7 p4 D0 {" p) T. a0 U
until <condition>;
, q! z: w$ [* ^% p (4) for <condition> to <condition> loop
$ s7 {8 l# S% A& z0 z* a2 `0 ? <statement sequence1>;
4 U: Y( \& F) g8 ] \7 g. X next;' p! U; X. {5 e( T
3中断语句
# F: `. @& S( c' @ waituntil <condition> prio <integer expression>;& c* V: |7 E3 f7 `6 ]3 \$ n1 E# N- y5 P
9 B- `3 L- \8 B' i& E2 f$ O/ P
; K/ Z5 x# s6 m# x, H3 p9 u) o以上为常用的函数！
1 j% S2 X& ^7 P8 F2 S1 M& o: m还有很多，如有需要我把资料发到你邮箱里 + [1 B5 @; d% \+ N) k0 h, g
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