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发表于 2012-11-13 08:48:12
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1判断语句- H# X/ {/ Z' P% R
if <condition> then' V& Y7 E9 H3 n5 ^% ~
<statement sequence1>;
9 ]' Q+ F8 [" f9 r7 ]- H7 p# \ elseif <condition> then
+ r& j5 U# \1 P n8 g4 s1 r- i6 ]- b <statement sequence2>;. ^: L/ p0 x: C- }
else ( z g4 q6 U2 C. o* }- w5 `
<statement sequence3>;& V+ R1 D2 g% @! D' F
end;
7 n3 M" z x+ z! w7 R w$ ]如果分支比较多，用：
& D" w2 `$ f6 s, c `* M inspect <expression>3 M# w& K/ E' S$ u, b' R; V% E; \( m
when <constant_list> then
) J, A% D, S' J" K1 A" ? <statement sequence1>;
* W8 u( @8 N& @- s when <constant_list> then
& H. O4 ^4 s6 }& o- u, x/ s2 h <statement sequence2>;
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else
9 F0 m5 E+ W' ]& |2 n% v <statement sequence3>;
* q4 Y( h, a" N) x; iend;
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2循环语句
$ L& g( o! L' J. g! r) n (1) from <statement sequence1>- G/ O* H! z# O' Q' r
until <condition> loop% E3 A k( l( v5 V
<statement sequence2>;
/ J. j! b# y) L. V( S& }4 D* j( L end;) F; ^8 [5 E; t9 i- y1 g% ?
(2) while <condition> loop
9 g8 k& g" M) F7 t! } <statement sequence1>;) N' }- t2 |6 t' B
end;
5 X8 V* ^4 X0 w' ^ (3) repeat
s/ a$ U7 R L3 |+ ]* }1 y <statement sequence1>;" a3 V4 o$ G0 E3 Q( G
until <condition>; b% a) Y [; D
(4) for <condition> to <condition> loop: a. t. b) y0 h6 m
<statement sequence1>;8 a+ k6 H- S" w0 v2 h. b
next;
- H+ r( Q" I: R, U8 W% `3中断语句* N- g P( ~: `- v0 ?, }% R+ T
waituntil <condition> prio <integer expression>;( Y; n" k# z1 s# U7 z0 l" ]! n* A
+ d( v5 k6 c) w9 u; M* x
" \" j& H! g) J, a4 M
以上为常用的函数！
! g0 N7 [: K7 v' O& J还有很多，如有需要我把资料发到你邮箱里
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