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发表于 2012-11-13 08:48:12
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1判断语句* q' x: `" p/ u% y1 R5 B
if <condition> then+ H/ ~( M! z% _
<statement sequence1>;# j" ]2 j9 t8 L
elseif <condition> then
' } a9 @4 V0 m; H5 j <statement sequence2>;
+ r% @- D/ l& V1 s5 c6 g else
/ M. T, a' I; R0 E* M0 S <statement sequence3>;/ J T1 \* E6 w+ b& y
end;
' @8 T; ]1 W& j) P0 a如果分支比较多，用：: J; m& A# c5 W1 \# `% k
inspect <expression>
" ^9 b, n1 _$ I- U when <constant_list> then) Q* x: w" E; ^# g
<statement sequence1>;
, j/ N5 G- o8 s. v4 N) p! ^ when <constant_list> then' C a6 @3 H- P) {; l& ]$ d* {
<statement sequence2>;
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else
, ~0 ^7 \( s6 F& N3 F <statement sequence3>;
# @- \) i+ k( Z; x* b6 Z z) Dend;
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# Q* Y' h2 O& S; s8 d- ?2循环语句" ]# j2 p$ |- s. m7 _: C7 j
(1) from <statement sequence1>/ r1 F: H* Q8 y7 S
until <condition> loop1 y# X, o7 w* e& A" M
<statement sequence2>;
4 I( W; A; C9 G& S' q& \ end;
$ m4 A/ \' l7 } k (2) while <condition> loop
8 `# T" t, `0 j3 J <statement sequence1>;
, v' F! S- j# y2 L4 Z end;
/ U% i( x% z' g" H& ]3 W. q (3) repeat
+ k# e2 k' x8 |' ? <statement sequence1>;
; s9 y. \8 \9 b+ e. l g0 t) `' \ until <condition>;/ ?. f- B5 `- [" b
(4) for <condition> to <condition> loop3 D# }: L5 n+ r; h! Q- V
<statement sequence1>;
4 k$ p$ Q; O+ r: Z next;
! P- {& s4 [1 M- f# U8 a3中断语句
6 n+ I( d2 o4 J waituntil <condition> prio <integer expression>;
g' G4 X2 w4 f% ]' l; b/ L. C7 w1 y2 H( z! ^: Y
6 z* [( [ d! `" p4 X/ ?
以上为常用的函数！& k4 \3 O4 @$ N" G9 a9 X
还有很多，如有需要我把资料发到你邮箱里
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