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发表于 2012-11-13 08:48:12
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1判断语句 W# X7 g7 Z" W i X, \2 F
if <condition> then0 S: i* {- G; N
<statement sequence1>;- }# ^) y) u9 o$ S! B2 `# K
elseif <condition> then2 W& t" x& W& E
<statement sequence2>;/ G5 q* u. c# \# B
else
+ i! o0 Q* [: M <statement sequence3>;
. y% C/ ]0 B+ w3 D- [2 } end;
, H3 M! m9 T! _$ @8 ~" | m/ |如果分支比较多，用：
3 f1 P; b. Z( Q inspect <expression>' _( L- I3 [. S! q, ?( T
when <constant_list> then
$ y% I9 E/ f8 l% H4 a R' a <statement sequence1>;
7 X }/ G. y- U }0 D7 A( G when <constant_list> then
# a, R; T( j. U* d2 Z <statement sequence2>;' c: j$ t7 c C
...
# _+ ~7 x. C: v& [1 M8 s! N else
( J% k2 _- m" }# \2 \ r <statement sequence3>;+ `, X9 e2 p. k8 e t3 i
end;% `# a' b. D5 y% h
q7 I: u/ Q: E# P2循环语句
: p1 `, ]2 o. F" x, x v* e# g" i, `7 k (1) from <statement sequence1>
2 _* c9 V/ g, P/ g) T) \ until <condition> loop( W* ^! ?. C7 M5 u& p. }
<statement sequence2>;
4 o: K! e' A: _* }* W% r D! r end;
3 X- b! |0 I H) | (2) while <condition> loop3 Y! k* c. N$ [7 i" c, r
<statement sequence1>;
- @2 j2 X+ ?; E end;) ?* y' f* W3 k( }
(3) repeat
; ?) l- p! v/ m( l: \1 y <statement sequence1>;
& Y5 A; x2 `# @+ }0 m2 h until <condition>;- M4 N+ P: S8 {
(4) for <condition> to <condition> loop
' ^1 W- \2 m# w- {+ Z$ n% Y3 w2 A <statement sequence1>;9 E, U; m$ s: ^1 T5 V% P' J
next;
5 Z: R1 y7 M/ j3 O3中断语句) ?5 J$ m2 n" \9 L9 D
waituntil <condition> prio <integer expression>;9 e. S% I# X V; e
" s7 _, M' U3 L( Q
% o! D1 I- Q$ w以上为常用的函数！! D# S& z2 e" N; a0 o
还有很多，如有需要我把资料发到你邮箱里
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