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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
! ^1 V& q. F9 c- [: S; B% J3 n if <condition> then
0 H) `2 |' { H0 ~* k <statement sequence1>; y" I- O( u! u. }; H( |
elseif <condition> then
7 p$ ]& M; A% v; B <statement sequence2>;1 Q# o- B& e; W" z& R
else . }4 x- p. s/ z* l4 f& Y; V
<statement sequence3>;- L% K4 o; Z2 e& J7 v
end;
! I; i3 q2 d! i- u$ |如果分支比较多，用： E" @' P) i" Z" h5 N; T: m
inspect <expression>- w+ b! _% u( \8 ]+ x$ F( M
when <constant_list> then% X5 a4 a' f) S; ^- z1 h* ^+ W
<statement sequence1>;
! ~) Q ]" w2 T1 A# U$ x when <constant_list> then
0 a& b8 r9 q) d5 J2 @# W9 d <statement sequence2>;
# R4 a) @0 F2 c# f# n7 y) P( \: e ...
# w' j' `" { y4 z else" u( c- D) y2 I) j" Y1 Q8 S
<statement sequence3>;
4 }0 z( S* j+ P& U `end;
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2循环语句
: W4 c5 q5 l- d& C2 x (1) from <statement sequence1>
( f: C' U( c8 I- ^ until <condition> loop& w. F& l$ W1 h2 A
<statement sequence2>;, ~2 o$ _. h% k# u$ m
end;3 O' S3 Z' K5 }: d5 M" r
(2) while <condition> loop
; p, N$ G. @5 H: o7 I1 m! u <statement sequence1>;, x( m9 f1 ?1 X( e
end;- {! b5 k+ m7 v$ P
(3) repeat
3 R3 R8 d4 k4 y r) Y% v <statement sequence1>;. I4 j" O7 c2 ]( |
until <condition>;4 A, ]. G2 X# k( ^/ D" l
(4) for <condition> to <condition> loop: u* W7 F5 R% n% o# D' t
<statement sequence1>;$ H5 s' ]; t! \2 f( h2 f3 T
next;
G2 a( |) G: {6 V' _3中断语句5 p) s4 o7 `. D, a, N; ^! C
waituntil <condition> prio <integer expression>;
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以上为常用的函数！& h* r T+ F- O- x+ s' g2 x- f
还有很多，如有需要我把资料发到你邮箱里
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