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发表于 2012-11-13 08:48:12
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1判断语句+ l8 m6 r' `0 b; h8 [; f1 W
if <condition> then3 Y9 ]) \: W0 ~8 M' f$ E
<statement sequence1>;3 r5 |8 W: b& ]% a3 F' b* E ]
elseif <condition> then
. p7 F$ ~" d. o+ S7 A <statement sequence2>;- I1 p, O1 B2 j- K6 `
else
# Y h, c$ ^8 c, c0 A! C/ @- d <statement sequence3>;
. i, n. t) ]# y a8 s3 u6 m end;
: c) }' `- z! Y8 v0 U. H如果分支比较多，用：2 f! m( p3 v1 s# [$ T
inspect <expression>' ~. w4 M3 c. f/ F3 V( e
when <constant_list> then* w# e/ B; q8 P/ d
<statement sequence1>;
2 v* c3 P. l/ G1 x8 J* G. ^% G when <constant_list> then
, \+ g# z2 e- g <statement sequence2>; _& l2 V- z* j1 r. T' C
...
% o3 t0 M& g3 r, [+ g else
/ S- v3 b8 m p: k4 Q4 H <statement sequence3>;3 s; C1 V) k7 O8 U; L
end;
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2循环语句. @9 T" I, X- ^4 ]9 b1 L, o
(1) from <statement sequence1>- s# r+ w- J/ r, E+ a4 B' @
until <condition> loop
0 G' b! F: W' n+ U4 S, @! x <statement sequence2>;1 P" L; {9 q8 X X8 ^" F. Y: [
end;
# t7 Z! P8 s& } I (2) while <condition> loop
' ?7 t0 @% N7 a, [ <statement sequence1>;
( i+ ~4 ^/ p P1 |8 X% x end;
" v! G" N' K6 w (3) repeat
+ Z" ?+ S! c& p# P9 D7 n4 G: p <statement sequence1>;
4 w- g \/ E( i+ g# f& w" V until <condition>;8 C# ?& m' h5 O+ y
(4) for <condition> to <condition> loop
5 I# r6 u7 ] w* a& n9 H <statement sequence1>;
H$ j- A( B( K" } P! |, g2 S! v next;
1 i% b# B. X2 l6 h3中断语句
" ]5 K! z _/ s- ` waituntil <condition> prio <integer expression>;8 L: t- D1 _! C% j }+ G( u8 G! u7 K
+ [! [/ k; J) s, n$ p$ F- y0 b
以上为常用的函数！( b4 r' G8 P, E- H+ e0 l
还有很多，如有需要我把资料发到你邮箱里
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