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发表于 2012-11-13 08:48:12
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1判断语句# G7 _* Z; v \" V' I3 K
if <condition> then
% _0 c7 \" O+ B/ B* K <statement sequence1>;
, k; s$ f2 H V0 S' S3 \3 R elseif <condition> then
& ^. c( H; h/ P# w( K8 |$ \# ~0 e$ k; N <statement sequence2>;" q5 D" e" B. W! E5 s
else 2 J! b8 E% d( d: \& g- u: D# r
<statement sequence3>;
, n" _- X$ v9 S U( H( v2 k end;' I/ M# e% r' d9 ?, h4 L
如果分支比较多，用：8 |5 m+ F( x% e0 U3 H; i! _
inspect <expression>* h, z- t* w! `" `1 E& ^1 W
when <constant_list> then
9 e2 m) ?1 a" g. O+ N <statement sequence1>;
$ D" v7 z( _6 B8 K$ j( Y$ v3 X T when <constant_list> then9 h) w; Q1 m" U6 g' n/ T4 s1 H
<statement sequence2>;
% T9 h+ u: r# s6 Y! j) @ ...
$ a# [( r. }7 \ else
* A% A3 p" S, A m; w, V4 F6 i" u" @' H <statement sequence3>;9 e+ j+ K8 E2 `! t
end;
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1 }! b# {( D% \* w4 V7 \) n9 }/ d2循环语句; j* S/ d! k& H* t9 x; g& E
(1) from <statement sequence1>% O; o2 @7 p" c4 d2 b3 E0 u% ~0 M1 ~
until <condition> loop
2 S; y$ W; \" L" E) ~) F1 G <statement sequence2>;
2 y. ?+ n2 ^( `) q end;# ^1 r/ j E/ M z3 Y
(2) while <condition> loop
; y4 ]# p! v2 |: {, s <statement sequence1>;. ^$ M- [) W ]5 ~, B) M3 u
end;
0 d. L* X( @0 o: m (3) repeat $ I" f2 j, S3 G* x- Q% ^1 N4 w
<statement sequence1>;' M0 A5 u! s- I
until <condition>;! a% }8 [0 _$ c+ f9 Q8 y& t
(4) for <condition> to <condition> loop
) K# v K6 `3 |3 L" T& b" I2 x <statement sequence1>;
6 I+ S& Z$ k4 i7 [: T0 N next;
! k! }' H7 y) F0 [3中断语句
1 Q. `3 U/ C7 { waituntil <condition> prio <integer expression>;. o) `! K) V$ ^! \
4 L- t/ o1 O t
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以上为常用的函数！* K" f# {5 a6 I! H3 _4 F
还有很多，如有需要我把资料发到你邮箱里 5 F4 b' {( {, n
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