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发表于 2012-11-13 08:48:12
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1判断语句: D0 i; f4 `- E, z& O! \4 t
if <condition> then6 {3 ~" T2 t5 \ E6 Q
<statement sequence1>;- }3 m# c- t: s1 z- O. l
elseif <condition> then
! P9 w' Z2 E, _' s! X <statement sequence2>;8 {7 ]5 y* i8 p8 j
else ' z4 ^. s" C1 L4 U! \$ C
<statement sequence3>;
& r4 n" s* i, e g$ x' S end;; ]9 P g0 y! N2 L9 x5 ~
如果分支比较多，用：5 S" {& |5 d/ _9 X7 P) h _0 q
inspect <expression>6 A) S. F2 U* D$ T" A9 x! h( q7 i; _
when <constant_list> then) x7 l% F9 T! U4 R+ z, c
<statement sequence1>;* Q, c* U& x: ^8 A4 Q# s2 J- c* d
when <constant_list> then
$ J1 B0 @; ?/ \7 _. a% J <statement sequence2>;* X" \$ x# V4 v, L. N9 V
...
/ i4 u9 s8 J# n9 e$ { ]3 f) P else! s/ P- F4 L" `( E n" @8 U
<statement sequence3>;
7 Z3 ~2 M/ S0 @end;
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+ t5 O" a e Z) R ]* C, x& U2循环语句* q7 g: s& j" |4 k2 c' l% \8 Y) I
(1) from <statement sequence1>8 \% B$ b( h3 V$ t) D
until <condition> loop
' g" `2 I- S+ t1 I2 i) q$ X5 h <statement sequence2>;
6 P( _/ `- T1 Z0 z3 g3 A& _2 }; S end;; `& t1 X+ H: I& I0 }' v; z
(2) while <condition> loop) i0 i# R$ g. u( A, T6 K
<statement sequence1>;5 |4 N% @4 }6 ?6 P2 e
end;
8 J( n. A/ d/ W5 ], A, k! h& v (3) repeat . n. A2 r9 Y. _: Q9 i) L
<statement sequence1>; }+ T* b& n9 G' t
until <condition>;
7 X: T+ _/ h" _. ~ (4) for <condition> to <condition> loop8 N# G% C( `4 u( Y' f7 h# a
<statement sequence1>;
/ q* ?2 t2 ^7 Q next;2 M# c6 p6 W1 D
3中断语句
' u' O4 t! m. p! D) C% a, y waituntil <condition> prio <integer expression>;5 i \8 \5 f `0 e. C1 N: `# X" w
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以上为常用的函数！* F4 i! |! P1 D% z1 q W
还有很多，如有需要我把资料发到你邮箱里
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