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发表于 2012-11-13 08:48:12
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1判断语句% u6 a5 S% e. D
if <condition> then
+ e# ], |& ^! ~ <statement sequence1>;1 |; Z, F9 ] O! P2 ~' _1 W5 s
elseif <condition> then
/ [) g# ^& l: K3 G* G, M <statement sequence2>;
* l$ a4 A1 w+ G8 k else
- b+ d/ Q3 R; i, Y <statement sequence3>;
7 n6 y" `$ X) h1 s' w1 j end;
R4 ?% |% T0 D+ J2 Y如果分支比较多，用：
& h6 p! e5 y" f( Q inspect <expression>$ N- |4 o9 }+ @% O
when <constant_list> then% e) H" E' @+ p7 c/ {* v
<statement sequence1>;5 }! ]/ M6 X5 ~3 ]4 d: y: ~/ m. x# x: J
when <constant_list> then [6 |/ L2 Y) ~9 ?) K& T8 S7 I
<statement sequence2>;* {. ? I/ j( {. a/ j
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else, d5 }1 Q% m0 n4 c
<statement sequence3>;
1 _/ O6 Q* v2 p8 w& ?9 mend;
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2循环语句' j7 [' n& ?& I% {: J5 x
(1) from <statement sequence1>
: D+ a% B: g9 z0 ?' W1 l) r until <condition> loop
$ H) w. X. e# h4 b6 a1 E <statement sequence2>;' \0 o! a$ ?* k7 T
end;
# s" g: n+ }4 O9 |/ i (2) while <condition> loop
6 Z+ `( Z+ \4 d n8 ~4 X% W. v. S <statement sequence1>;
0 [6 o: y! ~: G end;+ x. ~, i7 }7 ]- o1 `/ p# `2 c- @5 h
(3) repeat % o% o, v! O1 f% L% k2 J
<statement sequence1>;4 c! v& m/ y8 M6 Q4 w7 c8 y
until <condition>;
t) C0 H1 D% W% j; w" t (4) for <condition> to <condition> loop
) r* O2 ^6 m2 M4 f! M <statement sequence1>;
" U$ L8 A2 S# ?/ |, L+ E, m next;
% |% a- M# C% m! j5 K. Y0 m& F3中断语句
7 W: C& G& r! } ]- j L1 f# C waituntil <condition> prio <integer expression>;
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1 o. C7 H( @* u9 v' u% s以上为常用的函数！
4 b1 c3 m9 ?. B ~4 w9 U6 ]还有很多，如有需要我把资料发到你邮箱里 9 J) n$ [: {( v1 c. J
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