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发表于 2012-11-13 08:48:12
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1判断语句
( |$ r" p7 A; W) j3 ] if <condition> then
$ f, w* C* H: ]3 e; @) w9 O <statement sequence1>;9 m4 k+ p8 D3 y" H5 S6 C6 j
elseif <condition> then; e7 {. n8 T8 T1 R7 R, G
<statement sequence2>;' [, S( a/ Y( d. k* Q' A' ~) t
else
! U0 c; H! Z0 t6 J( C" [ <statement sequence3>;" q, U$ z9 E9 r, N/ \
end;- {: Z. j# K4 ^, p( p' k0 Z0 h2 O
如果分支比较多,用:9 q: Z+ o1 k C0 L
inspect <expression>- r9 E1 o- k4 h
when <constant_list> then
. _4 J! m+ h- w3 J# y! a% g <statement sequence1>;
/ R4 f: U$ W! S+ F2 m when <constant_list> then
( X' @/ p- h. L+ U% S <statement sequence2>;. F, w. Q7 _( i& f
...
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<statement sequence3>;
% Q$ M8 K! f% b' Q& ?; G' M t7 y' kend;
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, K4 V S' L; V3 Q( m2循环语句% S& o/ ~+ |) k3 P. |
(1) from <statement sequence1>7 l. ]0 p8 O. f
until <condition> loop4 N2 Q& M2 w) X: [* M8 `' z
<statement sequence2>;7 I$ J: N5 A* l# K7 \- x/ s
end;
; Y2 w3 i+ M7 w/ V% ~ P- x* ? (2) while <condition> loop
( w: y& A& n: } D& V3 N8 \! i <statement sequence1>;
( s- h' F3 y6 G) \8 L+ K/ m5 e end;
( E& O& w( V4 @, u9 r4 K$ @ (3) repeat
4 L0 r" r1 Z2 ~+ b/ P4 Z6 \$ o; c& O3 | <statement sequence1>;3 c/ [+ i1 F$ J) H
until <condition>;
B. c; i2 V2 P4 k (4) for <condition> to <condition> loop' _) t6 I1 H4 @; M9 `5 n
<statement sequence1>;
- N( r- I% O+ j+ j next;% i5 r$ r/ c4 O8 d
3中断语句3 g7 ^0 F6 \' [0 y1 i
waituntil <condition> prio <integer expression>;
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以上为常用的函数!4 f8 s. L- s; B
还有很多,如有需要我把资料发到你邮箱里
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