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发表于 2012-11-13 08:48:12
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1判断语句
, o8 o, R9 x+ I( [9 Z5 c3 V if <condition> then1 E. E1 A! r7 F. N. g
<statement sequence1>;
$ S9 B- z: D4 {8 O2 F$ ~ elseif <condition> then, M6 A$ }8 x/ j
<statement sequence2>;
" H) `- a5 M7 G else
. X+ a) M7 x0 y* a9 \8 g <statement sequence3>;
) @% C5 n2 ~: X" w. \$ ^5 [% Z/ U @ end;7 z4 p* d, m6 q
如果分支比较多，用：3 ~) m! U$ V! |/ b3 M3 R; x
inspect <expression>6 o- Q, @2 N7 W
when <constant_list> then
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when <constant_list> then, }2 g# f9 ~7 S1 L9 @
<statement sequence2>;
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else- z3 E6 B/ c; i; R
<statement sequence3>;
e1 x# f6 e8 lend;1 u- p1 z- @" W. c1 x
$ w& e/ U" i# [+ O0 W; t+ T2循环语句$ ^, N* Y6 n; N7 l; ^1 r
(1) from <statement sequence1>
1 i2 |; y. k" P/ { until <condition> loop: K0 p( o( U ^, ?5 A, [" B
<statement sequence2>;
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(2) while <condition> loop4 T5 T4 m& I7 l& j# b8 z1 U& `; c
<statement sequence1>;, e- l% }1 l& {9 E5 X! ?7 t) d
end;( P2 t: Y# L6 G. r
(3) repeat & m r% Z+ e" a+ Z
<statement sequence1>;4 l& T% r$ s; c! l0 N
until <condition>; a% ?: S) ?- J+ V/ i
(4) for <condition> to <condition> loop
' ?; Y0 b6 S3 L* I/ e, H& ]% i- K3 f <statement sequence1>;
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3中断语句% ]$ I: j6 r+ s* k0 ?" }
waituntil <condition> prio <integer expression>;
3 T* X1 _& y: s+ {+ r o4 U( U: c( q, |2 u+ B5 c0 e4 s6 [# `7 L
: L2 J2 J! U9 B8 @2 x, u以上为常用的函数！
% C: U5 ` ^$ E* g/ g还有很多，如有需要我把资料发到你邮箱里
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$ g2 w3 u$ J5 I9 ?
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