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发表于 2012-11-13 08:48:12
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1判断语句! \0 m3 C) i$ z9 F( }
if <condition> then* G4 t$ M; ?2 {+ A. A* z$ ]
<statement sequence1>;
$ U+ n( D2 W2 ?- m0 v elseif <condition> then# _7 L$ K, |7 T
<statement sequence2>;, o6 ^3 l( L4 C' m9 O' W
else 5 d4 F$ q+ C* q' o E* p1 T
<statement sequence3>;
3 t3 N0 u* v5 T5 _/ b end;
, F9 e$ _# W0 _如果分支比较多，用：
. l( l: S C ]+ f* d inspect <expression>- c6 A% P- y& p# B
when <constant_list> then
2 ?+ ]: B# p; \" u+ i" e <statement sequence1>;+ v3 r1 W! D, u, G; a* k
when <constant_list> then
0 H- e7 I( H9 }- o8 Q <statement sequence2>;$ b" B) {( I w' U- I, j+ C
...
# k( N: x7 _5 t% Z9 @ Q else/ Q$ ~8 J# A+ y$ L# E& e6 E
<statement sequence3>;
% ~1 C4 u3 }9 W4 N8 ^/ S3 P+ k$ ]! w" W3 [end;4 q! C2 y& \+ O# Z. K
1 n" L$ Q& x7 b+ U! G. G/ _$ b: P) U2循环语句. D5 Q/ D; A0 `. h) g* C& s
(1) from <statement sequence1>
9 H8 r) W8 y% V# ~9 `& e until <condition> loop! I; `- y% t/ k
<statement sequence2>;
5 b! ~! m- _9 _1 u6 W end;
: |; S; t$ P) I5 F (2) while <condition> loop
9 k4 B/ n% h3 P9 R7 s <statement sequence1>;
" T2 u( Y( \$ f4 {6 L end;/ N8 ?/ y7 c$ j! t
(3) repeat 6 R% _$ a- R. I' \0 P6 T
<statement sequence1>;
! G, [5 e" @. N7 I/ @% K+ A until <condition>;
6 w0 i/ P9 } R E6 I (4) for <condition> to <condition> loop x# l0 {& l: u$ F8 q
<statement sequence1>;
% J) H) r7 O, m( H4 u L( ]7 V next;4 F+ `' G6 X7 m, q. {3 X7 M
3中断语句7 h: b3 V# z6 y1 J4 h$ R& {6 w" d: ]! b
waituntil <condition> prio <integer expression>;, R d/ E" K6 N8 z
$ e( x/ `$ n% a- z5 T% T& \, g
; C y+ J% j& F9 a9 w& g4 p( h7 f以上为常用的函数！1 p2 M. P* { ?$ D6 O, v; ?* l y
还有很多，如有需要我把资料发到你邮箱里 + C$ i X0 X& R& e. R
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