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发表于 2012-11-13 08:48:12
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1判断语句, j2 F5 k) F+ j/ A& O! i0 s
if <condition> then/ m/ q% B0 `, n1 D- d
<statement sequence1>;
, l$ L# _' I* W elseif <condition> then
" P4 q3 t R' s4 v& O <statement sequence2>;% a8 e) k( J7 z
else
) v4 H3 ~4 n; |8 ], h- y <statement sequence3>;
3 P. E6 c4 Z. k+ t& y+ ?1 m n1 s& k end;
$ V( L* d6 L! O. u9 S% o( A. D如果分支比较多，用：( Y" a1 s5 C* C- {8 N) ]
inspect <expression>
. W7 K* L7 o6 R C: g; z2 w: { when <constant_list> then" K2 m! u4 H4 k
<statement sequence1>;9 @, e% X$ o' M- ^0 l! ?5 w
when <constant_list> then
0 ^: E" a! c; e2 y t' u. T1 _ <statement sequence2>;+ h* k- t7 W, P f' a, e1 J& w
...
. K" j: r, j) }7 [ else* l2 _, |0 ?5 l" r# w
<statement sequence3>;
4 }& D6 \9 E0 Uend;
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9 I d" }" V, J, x2循环语句' w, [6 b" v+ E4 }3 Y. i
(1) from <statement sequence1>2 `3 f/ G+ H* G
until <condition> loop
( c, J3 F9 q% h4 g7 M <statement sequence2>;- R k% m; N- R K
end;
6 m. @$ O$ o2 d1 r7 \- J' | (2) while <condition> loop
/ I+ k. C4 f' v0 N. w <statement sequence1>;1 ^* a$ L+ ^# {0 H u/ E- k
end;4 H# E w2 z) T. o
(3) repeat # M. F) q1 @% g8 o! e
<statement sequence1>;5 c9 }1 j9 m/ E- ?. |0 k6 R
until <condition>;
$ m: ]0 ]1 e2 D A. D (4) for <condition> to <condition> loop
; p7 v$ h! r+ O. d8 b! |4 P5 r& g* G <statement sequence1>;5 g) a" N: J+ {1 p% m
next;/ t$ s, [0 a7 W: ^5 M3 C8 N
3中断语句8 B% |6 m, Z" Q
waituntil <condition> prio <integer expression>;, K9 L( V8 y7 w; }# f+ n) }
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以上为常用的函数！, [- U, H' r& F' E- ]. z
还有很多，如有需要我把资料发到你邮箱里 9 ~$ h: p9 Q/ J4 P9 R0 g
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