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发表于 2012-11-13 08:48:12
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1判断语句
$ [, f5 o7 }6 A. D" E) B if <condition> then
8 ]$ }5 s: r- ~7 C! q; K2 N" K <statement sequence1>;* B" o$ v: e' m% @
elseif <condition> then) f5 \$ ]* i# ~. g2 W/ B- r5 w/ Q
<statement sequence2>;" _8 |/ I/ G0 |6 X9 I* G8 s$ A9 j
else
& P, Y0 f+ h% b$ X) u- K <statement sequence3>;/ A. z! p) i6 Y4 R0 s0 D
end;
1 [2 D# @2 {8 k6 i如果分支比较多,用:
# p! r6 H, D5 C- h/ I inspect <expression>
+ D% U* ]- [( X, u when <constant_list> then
: Z- ]* t- |2 Q+ g. E2 J# k4 ~) B& z <statement sequence1>;$ a0 Q3 v, I+ _6 ]& K B
when <constant_list> then
# Y; A7 U* R( B! M <statement sequence2>;
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else3 T! s5 ]( k. j4 Z# \7 ^
<statement sequence3>;
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2循环语句( u0 U; X1 P; Y, n0 {: i( Q+ j
(1) from <statement sequence1>
9 z1 t% ?% p* B) R% U3 V6 P* A until <condition> loop
- Y2 U! ], C+ H6 H8 L& _ <statement sequence2>;5 g9 i) p4 ^4 [) U; r9 N) |# B
end;+ y0 q% x1 {) e2 V4 h! U6 @+ t
(2) while <condition> loop5 ?( h/ c& U8 U4 T( b
<statement sequence1>;
# r/ Z' T5 D# p end;% z0 ?& [8 C4 S0 Q1 x" @
(3) repeat % A+ r5 g* Z( ^
<statement sequence1>;/ o8 Y' }0 [# g& E( z' J
until <condition>;) ]1 q. X) a! P+ s9 L
(4) for <condition> to <condition> loop0 B" O# q; Z3 z' U8 X. B
<statement sequence1>;6 t K4 \# t8 v7 V
next;
% _2 z! i; _- j0 ^5 d+ d& X3中断语句
t2 I: x1 N3 q( a6 p% A" y waituntil <condition> prio <integer expression>;
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4 [ U1 F& W6 d5 Q, U& S以上为常用的函数!5 i9 z1 D5 [& p$ a, ?
还有很多,如有需要我把资料发到你邮箱里 ; C0 q" h+ z! Y0 _2 N+ k0 Z
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