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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
0 e! [0 H; k3 W# B if <condition> then3 R* f# i! f2 m( w5 v
<statement sequence1>;
3 ?% C A# L* Q9 T+ v elseif <condition> then
# [. ?+ _' }# r <statement sequence2>;& X$ t" o% I9 t, b- d
else
" B8 n6 { k1 y2 o p! X <statement sequence3>;& I& @ O/ }, K1 J
end;) o3 x6 u% M8 }! l# X) U
如果分支比较多,用:7 n4 S" L' L3 ~# ?& E, x' A
inspect <expression>
, H3 M1 D/ ?9 E+ F( J# x( t when <constant_list> then
9 l/ R( S: B! _/ [ <statement sequence1>;
}' q; y& m5 \5 ] when <constant_list> then
[" B. |" M! Q- i <statement sequence2>; W% W4 H& }/ K- }9 {( j: ?! X
...
( ~9 o9 \$ T; G( v6 C+ P else
1 ]' O f) z( a8 Y* I7 _ <statement sequence3>;" g0 |# ?) p: h$ u- [
end;& C3 C1 O7 K, u
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2循环语句
0 m. w2 ^# c* ^7 j, x' Y* E$ O& T7 } (1) from <statement sequence1>2 M( H' {8 H8 _! d# |( J- z
until <condition> loop
) E8 p6 O1 o* T) ~7 ? <statement sequence2>;
4 p8 ?9 k1 H0 F3 R0 v6 P* a- l3 v end;
$ k: m( N8 e& n4 T+ J- r (2) while <condition> loop
5 v( Q9 I; m. o8 v+ j% s) y% h6 I# G3 B <statement sequence1>;
1 l' [) v# j$ R2 T3 [5 D+ F end;6 r& I* t* E7 b
(3) repeat - x& [( T# j3 _1 X, _7 ^
<statement sequence1>;
& h" n: Y7 t2 j7 \* z; M until <condition>;4 ~4 B2 D; P* A- f& m
(4) for <condition> to <condition> loop
! R0 E" d9 D0 A* P! s& A <statement sequence1>; @1 ~0 N+ X3 X% T: s! O; k3 X+ [/ y
next;8 Y( F! C8 E3 C* `, C3 |' w7 R
3中断语句
c) _; h7 w8 S. R" U1 O1 W! N waituntil <condition> prio <integer expression>;
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以上为常用的函数!
& O( S+ B/ d1 c. i w! p2 j还有很多,如有需要我把资料发到你邮箱里 8 e6 L- i) n6 ?" v
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