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发表于 2012-11-13 08:48:12
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1判断语句
& I+ T* o8 a- O if <condition> then
h% }- w+ x* y' }7 [8 _" V v <statement sequence1>;8 j# ]0 f a, [3 |/ r
elseif <condition> then
% {+ I0 W. Y2 x. R <statement sequence2>;
9 [6 ~, y) H- C+ k1 @' g6 P else
2 z6 h' Y8 f3 \! \3 D1 t <statement sequence3>;
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如果分支比较多，用：
- ]: x8 F$ i; b w! e8 \ inspect <expression>* }6 {7 O1 U7 n, L. Q* r, Y
when <constant_list> then! A/ u# f1 [: X3 F
<statement sequence1>;
7 y9 i! C. u' i: K when <constant_list> then! R1 c# ^$ j0 p8 C
<statement sequence2>;# A, A$ y# B5 O9 ?/ r( w7 C: o
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else
# o0 P! V) ?. `2 }- f2 r0 U <statement sequence3>;& o! g8 k' Z+ h. z: h
end;
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2 E0 x+ S; i' o2循环语句
0 {) @( K' q3 q( m: C (1) from <statement sequence1>. x7 ~2 S4 g& a3 A3 h0 J J( U
until <condition> loop
/ X2 i, A5 j8 i% W+ z* y <statement sequence2>;1 v2 S" J( c. w: k7 K8 p2 a5 a2 J
end;, K8 _, t/ x1 E( n' G
(2) while <condition> loop
" D- g: |0 o* Y) Z <statement sequence1>;
$ I* B6 s# P& p0 _/ ]" t2 N n end;% y) s! g! z0 C( b
(3) repeat 0 c: ?1 w0 A, I
<statement sequence1>;1 E' Q2 g f3 b# E* }" q
until <condition>;- C( k6 @# ^4 P% S' P; s! S" h* w5 l
(4) for <condition> to <condition> loop8 a/ }6 [$ f: `
<statement sequence1>;& N3 x! e6 T4 M4 k3 O4 S
next;
* Z/ T* ^, H2 l" Q0 J1 ^5 A3中断语句7 {- v2 n) ^. g% G
waituntil <condition> prio <integer expression>;
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7 |5 v% Y; G3 E3 S3 E. F' r以上为常用的函数！
" i: Y# L3 r, a) _6 w! C还有很多，如有需要我把资料发到你邮箱里 4 `8 l h6 X x; w+ t
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