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发表于 2012-11-13 08:48:12
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1判断语句3 d- c7 a! T4 U* O0 a! E& O
if <condition> then( j. \% n. X2 u* |5 y& }
<statement sequence1>;
; _! ]# c! ]. [/ I! N! Z4 \ elseif <condition> then8 ~5 m, M! D! Z4 C9 e- i( ]; Z! s
<statement sequence2>;
3 R8 N+ f# O+ m0 ]+ H else # S* E% c- R+ S* f, z- Q% D5 E
<statement sequence3>;
# m+ M A) w i7 |( ]- ` end;
6 U- Z3 E/ D$ K如果分支比较多，用：7 H; y3 h& c& b7 P
inspect <expression>
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& U& E) a! S! y. {; w" o1 [! }( j( G <statement sequence1>;; A) M! n! R, i- e
when <constant_list> then9 p. e; U" Q" f5 {. P! D$ y+ c
<statement sequence2>;
( s3 d: P# ?7 B* Q p8 e& @0 U3 } ...
- W$ j. ?5 ]: J6 r! R, ?$ u( ? else
. J3 \/ U% u/ ~* N! w) M <statement sequence3>;
" P u P! l V. T9 d2 }# Eend;6 v T% o1 O7 k4 ]
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2循环语句; [$ r' o3 H1 g: ~7 {
(1) from <statement sequence1>8 y' W7 t0 y) F+ B) x
until <condition> loop1 ~+ ^7 h- Z: f, | M# f k
<statement sequence2>;
/ \5 f/ F' p- E) e/ S0 P( V' D end;
2 |1 }- ~; v/ ~9 E (2) while <condition> loop6 E' v0 Q4 b, h, Q7 d9 @- ]+ v# H
<statement sequence1>;) u- o. T5 I+ x9 j/ v
end;
% i6 `. z. M# g% R (3) repeat
0 f* } z' f& y8 @; y <statement sequence1>;" j2 A( C4 ]# C9 p
until <condition>;
& N8 v% T+ c' I6 A: Z" v (4) for <condition> to <condition> loop; M1 n+ ~& H: r& L; p, X4 Y% R
<statement sequence1>;0 Q% m" L% _2 U V) w: J5 v( Q
next;. l1 m6 Z; J" p( o- v& \$ y4 e8 W
3中断语句
- r$ K: s" ~3 \1 Z) i2 n5 w waituntil <condition> prio <integer expression>;8 }" ?% @$ A. s) ]+ m
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7 V' g% i4 g6 L$ S$ _! X5 a: ]( ~以上为常用的函数！) W+ ?- R2 s) N2 F* X
还有很多，如有需要我把资料发到你邮箱里
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