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发表于 2012-11-13 08:48:12
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1判断语句: H4 K- `) W# P, t
if <condition> then
( p( Y+ L8 I# J2 l <statement sequence1>;
) v% n: i# F3 o elseif <condition> then
, r$ v( w! |7 R/ N# e <statement sequence2>;9 I* B7 t0 f* n
else
. p' U& M" X8 T$ r4 u4 \) y% f& ^" L <statement sequence3>;
; e* l6 I9 Z6 i2 v. f! Y end;5 T4 S# k, H s6 K
如果分支比较多,用:
% Q' t+ O3 a9 H" w$ n3 l inspect <expression>. ]* K+ v3 G' {5 g. A
when <constant_list> then' P: M* I7 r: ^
<statement sequence1>;
8 a2 H6 F. ~2 G6 J |0 a: A" ? when <constant_list> then+ b5 H6 N# R! @( S0 N$ t: i
<statement sequence2>;
# C+ [) @2 v% @ l ...
* c4 u) r, Z0 ^ l6 t1 x" g5 _ else
" \8 Z5 o& R" k <statement sequence3>;
" Z2 M1 } ?. i1 O+ f$ V5 P: v7 a' b- fend;
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2循环语句
0 K3 \1 j1 \( K3 c+ i6 E. |/ S (1) from <statement sequence1>: F+ V) j# b6 @& d
until <condition> loop
& @4 ]# g# _, _/ B. `: Q <statement sequence2>;6 A# Z a3 F2 {: H* P
end;
) Z3 f! X6 P; c7 Z. P" W: N% E (2) while <condition> loop6 T, w2 \7 R# @3 Q3 T
<statement sequence1>;
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(3) repeat ( Q, t, G& g' Y |3 M" `
<statement sequence1>;* e# P, B" C3 d8 j; Z/ [% `% I
until <condition>;
2 J2 I! g4 u7 ^) U m% g (4) for <condition> to <condition> loop
: {1 q# V6 S- h. }4 ~ C1 P, h# ~ <statement sequence1>;" N, Z! J9 ?5 P& K% u4 p
next;
/ m% r0 R4 E9 k3 p: Q: E1 ~3中断语句2 Y; `' y. C, g% e2 l
waituntil <condition> prio <integer expression>;: d9 y( a) c j$ a6 \ S$ |! E2 }$ S
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+ n+ W5 K& ^8 X) C# h以上为常用的函数!4 e- k, Y/ X; ~- u3 _( y
还有很多,如有需要我把资料发到你邮箱里
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