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发表于 2012-11-13 08:48:12
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1判断语句2 w0 d/ f) W) v6 c
if <condition> then$ i' J7 W- {8 ?6 D/ x7 E
<statement sequence1>;
. I5 u( w/ f6 S" j- \ elseif <condition> then, d( C0 D+ ~0 E
<statement sequence2>;0 K* }% Y8 W$ Z; C2 \! n
else 8 H7 N y7 B1 Z9 I; Y# ~4 {2 w
<statement sequence3>;
0 w% b+ |$ _7 a, X r7 i end;, ~5 l7 F7 c9 y4 g
如果分支比较多，用：1 @" t% t1 X4 p0 n+ ]5 e7 T5 }
inspect <expression>" [( D5 w( Q! A& w# O
when <constant_list> then
$ J$ I0 |: k0 `8 L3 D) {! b2 ? <statement sequence1>;+ ?) }& n( G8 v) o, }
when <constant_list> then1 l! |! ~0 s$ X* p4 ^: H& t
<statement sequence2>;
" J8 _! U% c7 j8 ~ ...
0 }5 q7 I! j/ ]$ R; a else& H0 j7 W1 ]8 O5 l9 B
<statement sequence3>;
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1 O& F, m2 B2 ~# N; i" z/ }: }2循环语句
% v: n( S( y& ]. Z( d (1) from <statement sequence1>' w: ]9 R6 S$ }7 x- I9 C
until <condition> loop
& T* j3 X! v! j3 S; r <statement sequence2>;
1 n* D( v( n0 M" a end;
q+ Z8 x% @1 Q" X2 P (2) while <condition> loop
2 X) R8 [3 j" N4 f5 W( b' X3 f <statement sequence1>;, M2 S2 H- M' [7 U3 }% ^) r `2 j
end;( H$ w7 w. K- ?7 N) v
(3) repeat
( H; N7 o7 }" X/ U <statement sequence1>;& w3 ]2 S9 x- \ M4 o
until <condition>;
% A( y7 V, n6 k; c- h (4) for <condition> to <condition> loop
5 E% @$ _9 ]1 j) z. ~# l <statement sequence1>;
% J% Y9 F0 T3 ~& P* h" d next;
7 Q& v) x7 S+ A9 o3 m ~3中断语句
# ~' Q7 A I" }8 b7 P waituntil <condition> prio <integer expression>;
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' \" X9 s, F! v* r以上为常用的函数！
$ A* k! Q$ w& I! _" U# W6 H% W3 `% Q; e还有很多，如有需要我把资料发到你邮箱里
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