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发表于 2012-11-13 08:48:12
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1判断语句
. `1 G f0 K7 |4 M' H! ? if <condition> then% }1 q6 S3 g( d2 F/ m+ t
<statement sequence1>;
9 H! E7 E2 P+ K elseif <condition> then; Y" z$ u/ d$ I! p0 X
<statement sequence2>;
% }' J7 `2 f3 |3 y else 3 l5 K' E0 X. c" L( D
<statement sequence3>;# n# W3 l' G0 K) q9 ^7 S
end;) ^" n3 _$ x# P% ~9 T; f% d
如果分支比较多，用：
& W: V; {' i5 } inspect <expression>
, x- Z3 i- h+ d5 U+ d+ { when <constant_list> then
1 K+ ]- y2 X S" y <statement sequence1>;/ g+ n" m4 y: [, w) B5 c
when <constant_list> then
; o: N M ~, S. x- N8 f V- @ <statement sequence2>;8 e; M0 j# p( c& f+ V
.../ p- ]5 `, E; F* q4 v6 s' |* u. F
else
$ h* w; x: |! k# ^ <statement sequence3>;
1 O h$ S) p2 y1 d. l* t( yend;
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2循环语句% d) _- r$ m& a. q
(1) from <statement sequence1>
! M; G* p5 Z4 i until <condition> loop
, x' h& ]. T. t4 l <statement sequence2>;# v: m5 D8 O2 p+ ^! X' u9 j
end;( x) o) s _* d1 {+ M
(2) while <condition> loop# z0 j3 t0 y: r2 p
<statement sequence1>;, o# e4 |( v/ R7 w: v T
end;$ M# ^* k; c& f$ _: \7 k
(3) repeat
$ K! K5 c, D9 @8 o6 ^$ L& k& l <statement sequence1>;2 J) ~7 t! L. V6 t7 b8 R l4 h! K
until <condition>;
1 N7 M K& E- d9 r; Q8 G3 e' ] (4) for <condition> to <condition> loop
" \/ A% y7 R0 {( k5 v& x <statement sequence1>;
, t( L& A* }; {. x2 k- \ next;
7 Y; h. i+ s5 X3中断语句
/ Y; H @) K9 N7 X. s2 J waituntil <condition> prio <integer expression>;1 Q: c9 m& V, s9 q* x) d
0 y+ f% f; P1 O8 n9 W
: Q1 V. D' |8 u/ E; B9 m8 k以上为常用的函数！; d9 e% x9 ?+ z
还有很多，如有需要我把资料发到你邮箱里
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