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发表于 2012-11-13 08:48:12
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1判断语句* [, Q' O$ l" J8 w' w5 I/ E H i T5 o/ y
if <condition> then
( l' x. e* c4 I' E& N <statement sequence1>;8 a9 D6 S% G9 l
elseif <condition> then+ Y, b7 C$ Y9 e( l( z
<statement sequence2>;% T# T: k$ b' g# s: n# B$ ]
else % Y5 b3 h/ @2 f+ b
<statement sequence3>; ^" v1 T, P# ^
end;
/ e7 J k7 e2 s, D( X如果分支比较多，用：
3 _, W2 p0 |; L. P. }: L9 G6 k inspect <expression>
- ~' O+ g k& Q2 Y; G when <constant_list> then6 U! J5 ^+ Y& m& |; T% K5 p: Q* ?
<statement sequence1>;0 Y4 Z" f) }- s+ u
when <constant_list> then9 D; n! s& g1 {
<statement sequence2>;
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2 a4 G- q6 K( W4 k R! R else
8 O$ l9 O8 D: b$ l4 i <statement sequence3>;
+ [/ W8 W- H& p! a9 j4 m! m) `end;; l) B) N5 x) B4 q: |
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2循环语句: a/ ~% _( P( A! E, K# g& m
(1) from <statement sequence1>
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<statement sequence2>;4 S( E$ D$ u- l! a2 Z, t" a
end;
4 ?0 {4 L& m2 S- |5 q (2) while <condition> loop; [6 [7 d {% i6 Y$ z+ z
<statement sequence1>;
" [3 K( l/ g% s* C: o5 v# _ end;
: q+ ?+ B4 p0 G: `8 z0 r8 x (3) repeat ( S: u1 H- r% D8 t; o7 @, U
<statement sequence1>;
/ P8 H @8 c- f2 e until <condition>;0 U- Q$ ?8 q9 {) R8 I
(4) for <condition> to <condition> loop
0 A9 V" H+ x+ u* A% T& { <statement sequence1>;
# s: r* ~" y* `0 r next;
% }: {4 k4 m6 [5 N% F) o( H3中断语句1 i0 _3 m0 D" ^' y g, R
waituntil <condition> prio <integer expression>;: J/ i& b- J e4 M# A+ n& A
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5 G( @& ], A( Q& E$ ^以上为常用的函数！
- F# r/ v! P: t还有很多，如有需要我把资料发到你邮箱里
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