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发表于 2012-11-13 08:48:12
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1判断语句/ J+ m! y1 |7 [/ k9 b
if <condition> then
" Y5 A5 s4 |$ O+ m* \+ P <statement sequence1>;
& b" u x* ]! s! b; [ elseif <condition> then$ D& }) _3 W* }7 |9 q$ r
<statement sequence2>;
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4 I( @1 s7 Y( L' o <statement sequence3>;3 e/ `4 m, G4 G; M6 e8 l) I" I
end;+ t4 F; o% F/ ?1 \
如果分支比较多，用：
) E( n0 _: t# P5 `* c inspect <expression>
|/ J- J. c& q! V4 C2 q& @ when <constant_list> then) d: c8 O" e' f. c* X* ]9 d
<statement sequence1>;
' _! H" ^$ @2 _ e* {- c" E when <constant_list> then
6 B* T# ^% Y1 B <statement sequence2>;
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else
: W2 F) v/ ?3 J <statement sequence3>;$ c4 ? v: |: ^( ~" | R" [
end;" H, I9 V1 \6 H
$ e {5 W1 O0 Z e- q: q7 ]8 {2循环语句. f h# c0 ~/ N2 k$ S7 S
(1) from <statement sequence1>
1 X* v( y! Z" }6 A6 h until <condition> loop
1 i5 }- D6 _: F! [6 d <statement sequence2>;/ j4 |3 N. ?4 F5 S
end;
( h/ o* R+ h6 P- o (2) while <condition> loop$ i, t8 E0 A# F' M2 x3 Q2 j1 p
<statement sequence1>;/ d' U6 f! P. Q# r
end;: d0 L. r. h3 X: R( D% T. m
(3) repeat ( g* ~ P9 o8 c2 P. J, h) v
<statement sequence1>;. |7 ?2 z; J$ G/ j9 r1 v0 n
until <condition>;, F1 W% I1 ^3 t" E9 {
(4) for <condition> to <condition> loop
: [ ~% t$ U+ i <statement sequence1>;9 a. \, f9 ~- W! V% W) \
next;
( t: ]: B, S' `0 g+ u3中断语句6 f5 k9 t" f; o8 `
waituntil <condition> prio <integer expression>;
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以上为常用的函数！+ ]7 E9 h7 j' @' \! \
还有很多，如有需要我把资料发到你邮箱里 0 |. i% ^. q8 l6 ?' |( B" W
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