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发表于 2012-11-13 08:48:12
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1判断语句
4 D3 d* X9 X: C) P3 d# y6 T if <condition> then
! m) v( x! f3 g& k# P$ f, j <statement sequence1>;4 Z* P: \% x5 A9 U/ d' x4 L
elseif <condition> then8 @* t2 [8 H) u, J+ b: N
<statement sequence2>;
& o& h9 _" e1 W# q else
# Z2 d% c1 p# a& h7 H; x <statement sequence3>;! P) o: Y$ Q' t9 a, x
end;0 A0 L* x% y% U# Y [6 V
如果分支比较多，用：
$ P( Z$ ~7 e0 h* ^0 m5 I inspect <expression>$ y- \8 F3 N- S- _4 ~ G
when <constant_list> then
9 w- Z( ]$ C4 G9 Y% e) b) X <statement sequence1>;
+ W W+ a0 t8 E* s5 A when <constant_list> then
9 y. P: h# U2 U6 A) { <statement sequence2>;
: {$ l, z. n& n# _; x. @( t# s ...
! j4 O5 p w% y1 t( q# O7 P i else
! O) ^: c) v; R. B <statement sequence3>;" H/ f! H/ P' x: a+ Q) |' v, W
end;
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4 g; b% _6 \3 k! }. G2循环语句/ ^1 B8 c M. `" ], [. V; J
(1) from <statement sequence1>
: G# f. J. t) M7 p n k until <condition> loop
: f d6 e/ m4 Z6 { <statement sequence2>;
0 Y0 e/ R& ]9 S, m% ~" r- } end; N* Z3 k3 D, x% N* l* H
(2) while <condition> loop& B8 I! D; r7 F! q4 a4 g! W
<statement sequence1>;
1 |: O$ ] R: f! F4 u end;
0 a- k- j; f+ B7 K (3) repeat
3 I& H9 g2 Y! ?* F3 _; F <statement sequence1>;
1 Y$ k6 Z3 B9 ?9 H until <condition>;
2 }" S$ y2 Y. Z( w# b4 e) [! m (4) for <condition> to <condition> loop5 L( {5 m p1 k
<statement sequence1>;! f) }+ X( r5 y6 R8 }$ n# E
next;
, @3 _ |% o- o. i4 g4 W& R3中断语句
) z9 n* Y" f- y( k9 g, x0 {7 F waituntil <condition> prio <integer expression>;
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以上为常用的函数！
8 l2 |1 A6 r# R) D) k还有很多，如有需要我把资料发到你邮箱里
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