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发表于 2012-11-13 08:48:12
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1判断语句
8 R, E% i3 g7 q5 }3 u0 ?0 N if <condition> then& l- M! B+ t- R0 |* d/ ]4 o
<statement sequence1>;9 S# {# Y, U9 X5 ^
elseif <condition> then
5 W# ?; Q6 I5 |# y5 Q1 _" C `5 F1 c- C) K <statement sequence2>;
$ f% N) T* U2 M6 A6 ~ else
6 h/ x( U2 q; c: T5 i- Z <statement sequence3>;
+ x2 u3 \: T/ { end;
" R/ f9 N9 D7 O" W& w+ |# v! N如果分支比较多，用：/ \% W( O+ ] @# y
inspect <expression> H1 ^7 M `1 O3 M! ~' m. u/ L
when <constant_list> then
1 X8 d- W" b( C) b' W/ `! v <statement sequence1>;
2 X, k, }3 s9 j0 @, _ when <constant_list> then
z: H5 ^) A/ Y; r. Q1 i7 q4 N <statement sequence2>;% ~+ A) P5 G7 [: f
...
& \0 ~! L9 W ^% Y$ {0 j else; m$ V& D6 G! \' A, d& R! k
<statement sequence3>;
7 b# z4 C6 u+ X& ]4 `0 x# ~end;) y+ U. l1 H" x' o# s/ s3 H
/ k$ D% h k0 c, o- p. n2循环语句
/ S) m. n7 W" F2 c$ T6 R (1) from <statement sequence1>
2 i1 q5 |) {$ T1 r until <condition> loop. q3 a+ c; C& y# s
<statement sequence2>;4 u+ E" v! }/ Y, n* @7 H! f
end;9 r+ G; ^6 }- D/ E: E$ Z
(2) while <condition> loop2 F7 ~! K+ n7 E' H, Q9 x
<statement sequence1>;
: |; U) H% O+ ~( a! F end;
" Q: F- F+ M3 _) R3 A% n7 n (3) repeat
^# s5 o. f& X. @( D; J <statement sequence1>;, U; A2 M) M$ r' m, [
until <condition>;
7 }3 n( U4 g; y1 m+ r$ p7 K. W, x (4) for <condition> to <condition> loop
8 W6 s- X9 x' e; r/ _- N <statement sequence1>;
0 U- ~' D% y5 o" o X' M next;
, S& i+ w* z9 ~+ ^$ X( I1 K p+ a3中断语句
8 ~7 u' Y4 F2 O' L& ?, H( F- g waituntil <condition> prio <integer expression>;
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1 A# Z6 K/ j: k+ i' O; C
# e0 j9 ~; F+ A, Z以上为常用的函数！: U+ a' z- [3 J; T" |6 v
还有很多，如有需要我把资料发到你邮箱里 * M/ Q" D: G) u% O8 t! R" x- k
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