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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
8 F* e* X. y6 G9 B; n5 i if <condition> then
5 W$ Q# D- X$ j9 P2 n <statement sequence1>;
8 I1 |- n2 x' G( s elseif <condition> then
: c3 D8 T `/ _# z3 | <statement sequence2>;
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<statement sequence3>;' w3 r+ `7 T. i2 Y2 ^+ @, L
end;+ o" u; _! B1 b8 E+ J# o
如果分支比较多,用:
* e: r3 w# E% R9 t inspect <expression>
4 C+ U5 g2 O2 U. R( a% Z# [ when <constant_list> then
4 v {# c3 f. k5 C <statement sequence1>;; ^0 V. `2 _0 e8 E4 s& o" p
when <constant_list> then
0 P7 P. m# C6 a2 O <statement sequence2>;
% D* h, J9 C& j ...
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<statement sequence3>;4 n' v9 z4 a6 b) o2 T+ c5 z: \* l6 \: ^
end;
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/ m# [! g, x9 V5 D2循环语句! w. I7 q3 S% I' p( j) E
(1) from <statement sequence1>
* r" K/ N8 I% g5 t/ Z: X M: I! X until <condition> loop
. E* j5 ^; ?- F. l <statement sequence2>;
, @* ]; I, N) h% G4 O end;
1 B3 H5 `+ ~1 D- F7 L/ x/ O (2) while <condition> loop
; L" R1 |" U+ ~, \+ t. Y <statement sequence1>;9 |* a! I3 Z9 g6 I! b1 W
end;
; W: v/ ^8 f' Q4 z. S! f6 g (3) repeat ! Y' c, l( ^9 l# E
<statement sequence1>; m) M( c& m# X$ L
until <condition>;
: N6 t' r) O* X4 o d (4) for <condition> to <condition> loop0 i& m- W7 m/ f% ~3 r
<statement sequence1>;
: K! ?( ~7 j3 I, E; g8 G7 h% v next;7 y5 F* o7 b2 O* p g
3中断语句( Y7 j6 |3 {: h/ |+ _1 \
waituntil <condition> prio <integer expression>;( g! z+ C( F. z4 @2 \& s- u; \0 b
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以上为常用的函数!
O% O6 ~' |3 k6 ~. _& Y还有很多,如有需要我把资料发到你邮箱里
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