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发表于 2012-11-13 08:48:12
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1判断语句: `. A6 }- x. v
if <condition> then# d R1 O3 P- @4 y8 ]8 C
<statement sequence1>;
$ p( H/ g& R' O# l) N2 b4 ? elseif <condition> then
0 ]/ n8 @6 k/ R/ ~' Y1 y7 f3 q. l& O# | <statement sequence2>;
e& V( {- r9 {1 n# S else 1 e- H# l' Q2 H }( f2 M
<statement sequence3>;
& n8 @) A, N! @ end;
6 ]9 O w" o' L如果分支比较多，用：
: U2 Y; H4 k8 \8 c, {0 ] inspect <expression>
5 R% l* C& G. k0 y when <constant_list> then+ }' m% B" i0 q' X5 P8 R; g$ U
<statement sequence1>;" b" t$ q3 t% u! W. g5 I! c
when <constant_list> then" |+ K$ k& p2 c- C T3 T
<statement sequence2>;
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else& z6 y! R3 b; Q+ h
<statement sequence3>;
1 d3 d# ~" R1 y) {2 E/ m+ Eend;
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2循环语句
% A3 }! b; B8 L& T, a3 G% D& N (1) from <statement sequence1>
7 o: u* v m) { until <condition> loop' j# [& P L$ ~
<statement sequence2>;% {8 E( W. I0 y4 f' H
end;6 n; I. k- d: s. c
(2) while <condition> loop9 c# o2 @3 `/ ~% q9 u3 \% K# N: G
<statement sequence1>;. r3 V4 o7 o2 t2 ~. k; b |
end;
8 F# @+ C+ \" B2 o5 a/ x (3) repeat
! R6 n2 @. ]6 D g. W( V9 { <statement sequence1>;
' q( Z1 o* G0 W' X) ?( ]- D until <condition>;
7 ^& N& F* N0 B9 l: j (4) for <condition> to <condition> loop! i7 m( p, n0 ~$ ^6 b& \
<statement sequence1>;
6 g$ J9 U; h$ z2 I next;# J7 Q3 Y' q( k3 U) y `" a$ ~. f
3中断语句; w, k* Y G* }* J6 c% a
waituntil <condition> prio <integer expression>;
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+ Y) ]2 Y1 H& J7 R: F; M* r2 a" @6 @
以上为常用的函数！9 r M$ q1 |9 \# d0 Y1 Z) s# W* `+ U
还有很多，如有需要我把资料发到你邮箱里 : ^2 R; d# ^2 X; ^" ?3 Q
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