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发表于 2012-11-13 08:48:12
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1判断语句& [; A `& g" R* b( }' u( I
if <condition> then
9 B5 S2 D8 L" e- b, T, D <statement sequence1>;) I; G. f. j; q1 b! N
elseif <condition> then
, y/ m+ @5 F, T. G7 D! G6 s <statement sequence2>;
' h# B3 A9 i& h, T4 r$ H, @5 h3 m else
" F c, S' O' t+ K& u) x <statement sequence3>;7 e# T4 T* q5 v. `# w1 k9 i ^! P
end;
' N' c$ ]" R# T. R如果分支比较多,用:: m! K0 y3 K% i, {1 ^
inspect <expression>& N3 L" e1 ^5 ?6 u# R' Y8 s
when <constant_list> then5 f. [9 X9 B# o0 n" @
<statement sequence1>;# x8 m$ I) v1 h4 Y& g
when <constant_list> then
0 o5 L3 b7 k) J Y: F/ K <statement sequence2>;
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else
) A8 F" e' P% `; u$ C' d <statement sequence3>;
) h1 h5 q7 y5 A" kend;; O4 o$ @2 ~; L& k
% ]. o8 c( `4 }2循环语句
- Y7 K3 A3 B7 A (1) from <statement sequence1>8 u4 Y% h6 m" k
until <condition> loop
- p" R2 ~! d6 h9 e7 k0 @ <statement sequence2>;4 P/ B" z; o8 V8 X% z6 F" U2 T
end;
) b& [ q/ ^; v& z! S+ v (2) while <condition> loop
$ r8 y& d* p0 j! Z! i7 Q/ _+ ~( U <statement sequence1>;
" @, g8 u( X$ r, k. ] end;! ^% @2 L% F- `" C7 g
(3) repeat 7 M% h5 ]+ m+ C; e7 d
<statement sequence1>;
# J H, V: S- f7 x' X: B5 m* f until <condition>;
! |( H+ U( G& l' a# L$ B (4) for <condition> to <condition> loop) x: u4 A+ o0 S7 P4 a) |8 V
<statement sequence1>;1 N) D. ~& p! N7 t. p
next;! o& }6 i; ]( V4 T/ B5 c* _/ q
3中断语句5 m3 K9 q4 W: e p
waituntil <condition> prio <integer expression>;
- b. ^+ s0 H+ G1 w+ ~! L! f) V# c6 x9 {9 |0 ]1 X
# x# l' Z. I) o& N以上为常用的函数!
, F9 h7 I9 W8 X! _- n/ w k2 D还有很多,如有需要我把资料发到你邮箱里
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