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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
4 Q/ d" R3 \- Y; \" J if <condition> then
1 J% `( _ f- N7 M( P, m <statement sequence1>;
}& t" j5 y5 ?) @. e elseif <condition> then7 y* \, E) d& K' X8 Q* \
<statement sequence2>;
& k" C/ {& \! J0 I$ E* q else 2 G& i% N2 y8 l1 g$ M O; k, l
<statement sequence3>;
I9 r" V7 \/ q- F/ z end;
8 ^& `. j1 M8 t* w如果分支比较多，用：
$ L4 D4 W! T; x$ g$ {4 c inspect <expression>
, m% G# n0 L( { F) k when <constant_list> then1 H: G) y, {1 f
<statement sequence1>;
; w) q: c4 t/ M2 K3 \% I9 g. e; U when <constant_list> then& J" W& F8 D% K. J* I4 X& t
<statement sequence2>;8 Z9 T) y- P# D5 o. S, E
...% k! L. t; w3 V6 u" B+ C. }
else
9 C% N7 Q9 v+ V! `; h <statement sequence3>;0 Z+ m4 n1 b* q$ B3 P
end;
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2循环语句
! b* \ k& ^; W$ c1 [% u/ e (1) from <statement sequence1>: w2 j4 L2 I: P8 i
until <condition> loop# N% h$ _+ s! n& n
<statement sequence2>;( W$ J* a8 z& r2 \7 K- i2 Z4 g
end;! r1 h0 V" C" f4 ^
(2) while <condition> loop
4 a3 Q( A e0 [) ]8 R <statement sequence1>;
% A7 J4 Y0 f2 C9 v end;& j: u; U8 G+ \& d6 V x9 y
(3) repeat
/ ~2 D$ f, p: o; a( l <statement sequence1>;
% l* k, ~' \$ o2 X+ K6 T( t# G y until <condition>;
1 f5 L" \8 k6 V+ T (4) for <condition> to <condition> loop
% Q( m% L/ I8 s+ H9 { <statement sequence1>;
; y9 s2 Y3 ~8 Z3 G$ i next;
+ e0 _: |4 }' e8 Q g3中断语句
) K/ h3 q8 K) m8 k# Q# p waituntil <condition> prio <integer expression>;
4 c8 J2 {$ ~5 F! d
2 u1 s4 H$ x- ]" `& ^
( J8 n; v+ s; `$ B. t8 {4 p以上为常用的函数！
# R1 P1 _$ I& |- O* |还有很多，如有需要我把资料发到你邮箱里 % v! T# S5 B" g& E& I$ o- c
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