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发表于 2012-11-13 08:48:12
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1判断语句
/ ~- _) O& Y6 Z/ I5 I5 l if <condition> then
6 A' S( j6 [2 C/ R S1 ]( z <statement sequence1>;' w# s4 w4 c9 S8 K) a/ |
elseif <condition> then& c) L- w# f! Q, ~7 `2 ?/ @: o
<statement sequence2>;% u* H. ~6 s. o) \5 u" P7 C
else
% [) k- A6 |3 T% G I# a <statement sequence3>;- k# }$ R3 L4 h/ L9 W) e O% [
end;
8 `4 o! l$ ]3 i: B如果分支比较多，用：
6 l& v4 N" c5 @- y4 ? inspect <expression>1 U( {$ Z$ G+ o% l7 Q+ g& O5 |% e5 U
when <constant_list> then
9 B, \3 Q3 ]/ X. q: m* g <statement sequence1>;: d. i& q* i" b( A
when <constant_list> then
k) N0 A, G/ @- ? <statement sequence2>;. f% u; {0 `+ T; ~/ b8 T. h
...) N9 @7 |2 h/ w: h; C& k
else* v% _# Y$ ?+ E2 I8 Q. b
<statement sequence3>;) A! N7 n% G1 |& b. J! {
end;% B+ w$ P) P& Q% U4 c( N
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2循环语句# B9 f" w, [4 u. A: f
(1) from <statement sequence1>0 w$ a# u/ h" V4 D) s) z2 M( c
until <condition> loop
8 G- K2 \0 L* x4 A b <statement sequence2>;) ~' |, `# k; f# U
end;
! {7 U, q! z- f2 I0 H: q9 i0 ^; T (2) while <condition> loop
% |5 T8 E1 U7 h* D; m6 ] <statement sequence1>;6 V- N8 w) `5 p8 z2 q T
end;
) u6 a' S5 N6 U% M/ i( y( \ (3) repeat
3 \% }3 U$ o% b <statement sequence1>;0 j% A+ H' z9 X- f# n* s
until <condition>;& R. B0 s( T8 D/ |; D; n
(4) for <condition> to <condition> loop! |' H/ R% @* y/ s9 j& A
<statement sequence1>;) R4 M/ C( P5 s) A! T1 e) t$ }
next;
y: v1 t5 h! R6 f( p% v3中断语句
' W1 }7 i, s9 ^. L' ^& \1 F4 C7 | waituntil <condition> prio <integer expression>;
; ]7 ?$ Y4 b: \4 B3 O' J
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以上为常用的函数！' f( j1 q/ t. t `
还有很多，如有需要我把资料发到你邮箱里 7 i! e: C: X' G/ t5 w% ?4 J/ o
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