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发表于 2012-11-13 08:48:12
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1判断语句/ ?! S; @1 q6 C
if <condition> then
. I& p- R, Q6 r$ \0 U' c1 D <statement sequence1>;" |# b0 O- h# L% f
elseif <condition> then
+ @% X, T& e% w1 P <statement sequence2>;
* s- R( c$ Q9 w3 R- [4 ?) s3 c else
$ I! j0 M/ j2 M% c <statement sequence3>;4 j% O$ a6 A1 N, r5 S% Y
end;
- D& f; k! D% S) j! u/ o0 D如果分支比较多，用：
! Y& L( M5 N! i inspect <expression>
8 D- d3 g7 \# l when <constant_list> then" N1 @- `# R g @$ c" ?
<statement sequence1>;1 L' W, H, K: r; _1 y3 R& k% z# n
when <constant_list> then/ V: W# a1 ?7 g, l% S* I% E
<statement sequence2>; ^; T5 u/ m+ O% }
...* S/ \% r( s( \2 y) f2 H$ g
else
! E9 I) P& Z- ^, Z) z <statement sequence3>;
- j' _2 L! f: F8 C* R) `' x/ t Rend; U. l6 j# u! D$ a. L+ x, q' E5 A* c
* L9 j! g9 }! u! i& ~2循环语句: v( h5 x, B" }) ?# s, n
(1) from <statement sequence1>& Z6 s! F' D: y6 i/ @, N( e' @
until <condition> loop
$ Q" R& i L. u <statement sequence2>;
- h, Q& @$ Z2 J- p4 Y8 M end;
6 {$ J: w$ M; q& B/ `& C) x( j: _ (2) while <condition> loop5 S& Z0 ]" T7 [2 ]& e+ K6 A
<statement sequence1>;
( q5 u& H+ c5 Q+ G' ^ end;
, J5 ~ _0 A1 W' G" m4 Q0 ]/ R) I (3) repeat * k& |1 }9 m9 ~& Y
<statement sequence1>;* g; |# E( K, o9 e
until <condition>;/ r; ?2 h" K+ g5 a9 t3 e
(4) for <condition> to <condition> loop. e9 U0 ~! w- d9 a0 p$ A
<statement sequence1>;1 v3 X; _6 p0 U7 [/ R7 r
next;
: u# u7 U4 S5 E; l! |3中断语句
7 C( f1 ~, p- z' U( n' U waituntil <condition> prio <integer expression>;
+ u7 r4 G$ ]0 w8 x7 k3 i' l% F: u8 i5 c' t$ D
5 X# H Z! F- T" S$ S以上为常用的函数！
' c5 c: E, ]3 ?( e$ W还有很多，如有需要我把资料发到你邮箱里
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