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发表于 2012-11-13 08:48:12
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1判断语句
- _+ I3 v! p/ }7 g if <condition> then
) E" ?+ A$ I* _; P, c# p& ~ <statement sequence1>;
5 H' H/ h3 o; j0 P elseif <condition> then' p9 C* u1 w2 @
<statement sequence2>;, K, p) Q" ~' |% R Q. }) ^% `! V i
else
M, E |& \3 W7 _# {+ `! d <statement sequence3>;
$ u! r6 m% Y. x, W end;
1 z6 A; k* S# Q' T+ q$ a0 {如果分支比较多，用：
2 w4 h+ k. o. x' F0 a inspect <expression>( n5 c4 ]' F$ {6 o/ @
when <constant_list> then9 _( O% c5 T$ N8 E }, K1 M
<statement sequence1>;
7 r: L' z% G, u% R( u( x! q when <constant_list> then
" X+ J3 q0 d# ]7 Y; F4 X; A5 X, k/ _ <statement sequence2>;0 G" ^- A! f. T$ g
...
! d4 K d7 o. }0 ~ else
1 f+ H6 G* {; J <statement sequence3>;
# Z* A) R# N" E+ b# c+ Nend;- V. a9 n! y, E7 S; `. T
0 r" b, x2 i0 R2循环语句
; ?+ \) O( d0 `5 R5 s( a% T (1) from <statement sequence1>9 w. ^6 H, s/ ^; G8 R: x/ ?
until <condition> loop$ i# c u; j8 A1 p
<statement sequence2>;- a' Y' b0 ^# X6 z
end;( h' w) X. q' G
(2) while <condition> loop
6 D; P! r1 w1 e, j: j/ N <statement sequence1>;
4 b; v3 y; d k+ ?; q# h end;
; K. T7 B+ z! l8 Z (3) repeat 4 s% L7 ?8 z2 _# w
<statement sequence1>;
+ G+ j0 x! f/ J5 ~* T$ g until <condition>;
, b! g, d+ i+ D+ ?) c; s# s+ [( Z (4) for <condition> to <condition> loop
$ Q) M) p0 r8 C5 [ <statement sequence1>;
0 V/ W% L; Q/ V+ P2 n next;+ A3 h5 G! @0 E
3中断语句0 Z% j( p- D) p6 _
waituntil <condition> prio <integer expression>;
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以上为常用的函数！1 l! O3 c) ? D" C5 @1 b( A
还有很多，如有需要我把资料发到你邮箱里 7 j! M! B. e7 ?6 s9 ^
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