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发表于 2012-11-13 08:48:12
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1判断语句7 N) W: ~/ M; W
if <condition> then
6 K: _/ G% ?8 x" e* z9 u <statement sequence1>;2 }3 P! j+ A# _2 P4 f
elseif <condition> then6 g( H- m' d4 x
<statement sequence2>;" c7 l$ H& L4 a W
else " l: [ z( O9 T6 F& W3 }
<statement sequence3>;
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如果分支比较多，用：
) ]' A2 C" C' S% R inspect <expression>2 e* f( p; c8 t* ~5 X# a- ?+ @
when <constant_list> then1 N; W# K" C# ? H& b" D
<statement sequence1>;+ @3 P. K$ T- @ I, {) u7 U7 n/ c
when <constant_list> then
% f5 Q7 h u' ~' K# j6 D8 Y0 ^ <statement sequence2>;% w* r: Y' @6 e$ N4 C) V
...
6 k C) G v% C, w* X/ I7 d& z, d else
5 i Y2 q& }5 b4 f3 i: U <statement sequence3>;7 f9 d; X$ _/ Z4 D+ ~$ i
end;# A% A* D% F, l0 @/ @& w0 q
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2循环语句
A, l6 _( X$ z. \) H% u' Q (1) from <statement sequence1>" ~% O4 S! d6 y# S/ I! t
until <condition> loop
4 r/ m/ Z& r. z8 ~ <statement sequence2>;' G* T* D! W9 E1 b; L( \
end;
: W7 x& J" i- K5 v9 T2 C" l (2) while <condition> loop/ }6 G/ l: Q" }5 b+ T, n
<statement sequence1>;/ q3 Z( `" n( {% P3 ^" x* s# v% Z
end;
# ]6 F8 S$ R" U1 L2 N (3) repeat * X, c B d+ d# O" y2 v" w0 G
<statement sequence1>;2 f8 K. H9 M8 O" N: L% k( r, D9 [
until <condition>;; j% l+ V9 K5 {. C5 N# L: j
(4) for <condition> to <condition> loop
$ B8 u) P) U8 F3 T <statement sequence1>;! i) Q3 T) U+ D+ r' }3 \
next;
2 `% N9 Z9 T4 G: H" }2 R1 \3中断语句
" U3 D- P/ c! ^" { waituntil <condition> prio <integer expression>;2 Z. Q" {2 n* f4 {5 e: E
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) ` p: w8 z" n) C3 \0 P& @以上为常用的函数！
" B" Z4 ?! k9 W6 }还有很多，如有需要我把资料发到你邮箱里 1 H2 \- Z" E) ~& L) Q' Y
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