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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
% b8 n \3 m, H- S4 b7 s' W' D if <condition> then
% W1 b- A; d$ f <statement sequence1>;
2 S6 I& R) w' |, Z* h8 n3 J elseif <condition> then
' T4 y% i8 E: \ t3 Q+ o <statement sequence2>;
# \3 Z/ z6 ^! x9 t) D else
1 f( ~8 V" Y9 m& y <statement sequence3>;
% b6 N9 O. s3 r" [9 v end;8 F2 _( E6 z, z& Y: l0 `0 g
如果分支比较多，用：
! k! O# y6 L) V: j- } L7 K5 x inspect <expression>
/ h( S5 G' f2 v: Q( U when <constant_list> then! ~( C( v) F" ?/ k( ^
<statement sequence1>;
7 r4 _. |1 I; Y3 T* ~# g) H6 ?1 u when <constant_list> then; n& A" w$ H4 y& N6 e
<statement sequence2>;
& l+ y ~, D9 M8 [ q* [ ...
# }$ H w. `" u" h/ S- P else, X$ s& \5 @9 m* ~
<statement sequence3>;3 ]6 c: x8 D; E# S& W( M6 n1 ?1 Z3 d/ e
end;
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2循环语句
+ S" B) a$ j7 Z& g q (1) from <statement sequence1>
3 g8 B3 F. {7 h until <condition> loop' k# M) h& w& G: J' T
<statement sequence2>;5 z% l+ K; j) o9 V! y; _
end;
6 Y- k3 o r% ^ (2) while <condition> loop! D0 E4 Z) W3 i e5 s# h4 Z2 M& h. B
<statement sequence1>;
. X+ G/ m$ ?) A" F end; ]& f# k# P- t6 B+ A" G/ x
(3) repeat - z" L9 W2 n y R B' e' Y
<statement sequence1>;9 d1 X4 D7 a( M6 a9 b
until <condition>;
1 y ^# P* \2 x% W (4) for <condition> to <condition> loop6 N, ^( i8 q- W3 s: n8 t
<statement sequence1>;+ K; U+ c5 ^. z% o5 F
next;
- F) m0 B1 t+ s$ d3中断语句
4 l2 ^$ E* ]* F$ q/ A waituntil <condition> prio <integer expression>;$ f& \) n* }% p% D" h
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8 O# @/ i% l; _3 Y1 x9 _以上为常用的函数！
2 E1 O, C" Z4 \还有很多，如有需要我把资料发到你邮箱里 , A: T; X5 h8 B6 x7 {
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