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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
* g2 T( W1 k7 D$ f4 Y; \ if <condition> then
/ f: X+ [5 }' G+ K, D <statement sequence1>;$ z4 i0 V* Y( A, X v S
elseif <condition> then
% h3 f, {3 d6 q <statement sequence2>;
5 I/ } W( s2 y* }( E else
" l8 s: Y! C! Q# Z <statement sequence3>;. e) f* w, h- |" U: J
end;
) V. }$ i+ a3 r7 ^9 R: c如果分支比较多,用:
* S! a) Y- z& y+ c( s5 j, } inspect <expression>
! ?3 A6 ^6 Y0 j/ w# c when <constant_list> then
v3 X* p, X3 |$ c7 \: @3 @) y <statement sequence1>;8 N1 Y/ o7 S- {3 h
when <constant_list> then) v1 z9 Y! n) n- M
<statement sequence2>;- v+ P, K! `/ e' N/ t
...
( t* }1 B2 @: a- |) H: J* n6 I8 u else
" \8 s8 |9 G. b1 } <statement sequence3>; }- h7 _& g8 o4 T# E- i' p) c- b* H
end;! |& |9 v: x* U+ b0 N7 y" k
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2循环语句
& D" n. u0 K8 l( G5 C* S! b (1) from <statement sequence1>9 M- b0 L% ~( @: |% U, h. c
until <condition> loop
% ^+ }/ Y" D* ~ <statement sequence2>;
5 X" c% G9 b; v, Z. a' i; a6 [3 `% f end;" Y, g! O6 i5 J1 ], ~# e1 {
(2) while <condition> loop
& a2 N) o* `& d( K" I% h <statement sequence1>;
" x$ v0 B5 Z9 g end;
1 |2 }+ {* ~' m (3) repeat . E2 J% n% F" }0 u
<statement sequence1>; [; B- {# I7 u, E9 [/ V
until <condition>;! Y8 ~7 y( ` i0 M" T
(4) for <condition> to <condition> loop
. s" h4 d+ |: k \ v <statement sequence1>;
* x3 L9 c, z- l, U# h next;
' R: a+ y6 t" E5 s3中断语句$ r, z/ ]& o+ q" [
waituntil <condition> prio <integer expression>;
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以上为常用的函数!! H; [' {' b3 f( W8 @
还有很多,如有需要我把资料发到你邮箱里
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