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发表于 2012-11-13 08:48:12
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1判断语句
) u7 ^" k M, P* \. h3 u! ] if <condition> then& }/ a" T' p! [" K( p) ~/ U
<statement sequence1>;; p9 ]& l8 b, p$ F4 q: ?: |* f* {
elseif <condition> then7 A4 X5 E/ f/ A+ C6 w6 ]& U9 p* h
<statement sequence2>;
1 I6 v" ]. u# `& m else
+ O4 \5 J/ T, U- S <statement sequence3>;
* t+ ?/ { x9 P0 K* s d. T end;
9 D4 C- p6 u7 _2 k& P0 t: X如果分支比较多，用：
3 D% a' {( M) R& @) B inspect <expression>' `- y: p4 B1 S' L/ ~7 |
when <constant_list> then
" _: v$ G. j9 p4 o, a; f0 w <statement sequence1>;
# ?; g' }) |, X when <constant_list> then
; G6 _8 A2 n; r( Z, W/ B <statement sequence2>;
& s2 R3 D7 Q3 A; w# I ...
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<statement sequence3>;" F( ~" c5 n( h: ?
end;) s% A; y, M6 F( M: u: P+ j
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2循环语句
2 g/ O. ]1 r+ ^% { (1) from <statement sequence1>* i# s i h7 L% N8 Q
until <condition> loop: p5 @- ^ v) j2 X7 [
<statement sequence2>;- p; v) |+ h( H' Y
end;
+ c# g3 {: w1 r2 {; h$ B/ ?! h' ` (2) while <condition> loop
# `% J/ i9 c+ e8 b7 }( b3 s; V, m# ? <statement sequence1>;; Q3 w/ \4 v; K( C
end;+ D0 g" M5 Z3 F$ {
(3) repeat ' A+ A, K6 Z3 g
<statement sequence1>;
/ K" t3 R4 ?) ?4 l+ |4 c until <condition>;
* V4 ?% N) V( Q* d [" G (4) for <condition> to <condition> loop( x2 B8 k' ]( }! _" M
<statement sequence1>;
% o1 o5 `# h `; Y" Z next;- S; J$ Z% I9 Y
3中断语句
9 u! W" i2 O0 t$ P$ ` waituntil <condition> prio <integer expression>;5 a6 W- g# }# u1 V4 n
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以上为常用的函数！
. j' p) Y+ p5 I8 C& Q$ _还有很多，如有需要我把资料发到你邮箱里
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