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发表于 2012-11-13 08:48:12
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1判断语句
0 Y, n6 n3 q% ]0 m if <condition> then
8 `! ]% \8 @0 B0 s9 [9 T <statement sequence1>;
$ {( D/ O$ j: h7 @+ H elseif <condition> then
/ [& W7 m5 H' U7 G; {2 F6 g7 w. s <statement sequence2>;
+ D* w" R* l0 T9 F' g else : m2 ]9 d- k& _& i( `: O. Z
<statement sequence3>; ]5 F2 F; Z5 a9 F, ^7 s i( A
end;
, g/ P! m9 g' s" a如果分支比较多，用：
0 x& ?( P+ ]0 q! H inspect <expression>( G, H% t% W# e" c
when <constant_list> then- X; B Q4 M2 F1 M
<statement sequence1>;
$ I, F" X% x* n, W! l% D when <constant_list> then
; o: W8 ]2 Q, D4 c# w <statement sequence2>;- _8 \3 \& Q6 b$ v/ X, b
...8 ?# S: t$ I9 `, E4 E: p
else% [ u2 M/ t8 `$ {$ F
<statement sequence3>;
; X1 A) Y( b# q9 x2 A- L. t& gend;
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2循环语句
^: C: l- A; N0 }3 U! @ (1) from <statement sequence1>! O8 |: K, N! c' h6 P
until <condition> loop
; b8 S% W- D0 m <statement sequence2>;% f3 |, F m4 ~' |
end;9 C) D/ d6 T. k
(2) while <condition> loop
& {% j* P, J9 G4 p, t* O+ U <statement sequence1>;9 `8 b' a9 m5 ^4 x9 Y8 U
end;6 |8 ?3 h, H9 _: [1 [4 [) z) p
(3) repeat ( p0 l% T- R. a7 g
<statement sequence1>;, L) t3 N1 n M% n8 Y
until <condition>;
% Q2 i, [! P& ~* j* k (4) for <condition> to <condition> loop
; @5 G" A1 ~3 y% Q <statement sequence1>;7 r Q' @- P O; C; h, O; a
next;# R; E4 ?8 T0 u9 T k
3中断语句
5 l; ?7 Y" [# I/ Q- _7 q, U9 l waituntil <condition> prio <integer expression>;
+ ~. t: N `9 a/ T. V& ~
$ Q' U8 V. w3 `. W" |) t. J1 i F- V/ [1 n( \ h
以上为常用的函数！
( \! r! B+ w3 k. u8 @还有很多，如有需要我把资料发到你邮箱里
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