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发表于 2012-11-13 08:48:12
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1判断语句, ?# {# m7 v8 ?1 H( e7 X
if <condition> then7 Q/ Q! |# c7 @
<statement sequence1>;
7 |) v i( J" \4 Z1 R elseif <condition> then; B$ R, c& W$ P$ M7 Z
<statement sequence2>;
$ I- E+ q& A; F5 s. V else * T( k5 s" N" }
<statement sequence3>;, H6 c; V" @# S5 i5 r/ k* m% E
end;
, T; T7 q. `* z5 D9 G如果分支比较多,用:+ z* [5 P, ?+ p
inspect <expression>
+ k0 s+ k& r z7 ^) _8 A" b; y when <constant_list> then
: X8 K# @, D) {& M* h8 K- C <statement sequence1>;
" ]1 @, \* v) [9 L: i when <constant_list> then
1 _3 d C3 r% R* m# v <statement sequence2>;3 Y! `7 y0 ]4 [- r9 ^2 |
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else
/ G6 [9 K$ t9 t6 `2 j <statement sequence3>;
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4 A x5 z. _4 \$ n5 D2循环语句" h1 _6 n" M) |( B Z: y4 S# E
(1) from <statement sequence1># c+ P3 ?& v/ m: `' a# T" ?
until <condition> loop" {5 H- J( ~; h# J
<statement sequence2>;* ?. j3 x4 z5 C! c4 w
end;1 `/ P' g- p( }) p
(2) while <condition> loop! t7 q) c- d: B, v2 c
<statement sequence1>;
7 y0 S$ ]1 b9 z# \% o/ ]/ D end;
4 ~! l! }; ^& f4 D7 H (3) repeat , B2 H7 m7 ]+ l4 M+ F) p
<statement sequence1>;1 o: ~$ F4 Y, Y- N3 _+ |5 f
until <condition>;
9 i$ ~( C6 ?- o" r: S1 e3 V: r5 C (4) for <condition> to <condition> loop
1 Z& v& B/ k; c. P- T( ]+ b <statement sequence1>;
7 R# J3 }* b0 n1 a# _9 l% w+ Z next; K" U! ~( q& S: k. w' k! l
3中断语句
5 K7 V0 V9 u* P) I waituntil <condition> prio <integer expression>;' @5 L/ y; j* V7 A: H; v
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8 _- J+ |0 i0 n8 F2 W以上为常用的函数!# K# @* s* a& \. n1 g
还有很多,如有需要我把资料发到你邮箱里 . p4 _( J, a3 t( c9 F0 D
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