|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句3 v$ B8 N7 w8 D; f L- W
if <condition> then
2 [; e) c7 p+ H& R+ z <statement sequence1>;
4 J5 ]( F: n% v" Z0 c% c/ {" N. a elseif <condition> then6 z1 s# z/ S' p4 p* Y
<statement sequence2>;
( E$ r' R% n5 G: c8 \: I else / f: r7 s7 z1 V! U4 `: K. u4 K& c
<statement sequence3>;# Y2 _7 t' o2 f \9 u5 w2 R- a
end;
/ b6 T8 F8 M. l9 a8 Y3 j如果分支比较多，用：
, N( k4 k2 m( q+ d inspect <expression>: C# e- ^6 n# z- Y& ]- A: m9 g
when <constant_list> then
. i1 `2 t2 [# f C& N <statement sequence1>;" x, e6 I* t( L% Q/ B" u& l
when <constant_list> then
2 z1 d: E, _* c D6 g2 |7 e <statement sequence2>;
! I ]* d$ o% I( j ..." J* m0 _ J& m
else/ v; }! l6 e8 ? E/ A! S( O& ?
<statement sequence3>;
! ]1 a M" }2 X" f9 X# p4 vend;6 F& Y$ H! Q9 \$ `/ I
7 s8 R, A: \4 q; A" G6 N
2循环语句; ^# c9 g8 G; F
(1) from <statement sequence1>
7 d& B8 n! K7 ]( K' V; W# P$ c until <condition> loop+ r( j( Y/ l) w( n5 ]
<statement sequence2>;
8 h u) `/ L2 }2 d7 a end;
: F9 h/ }+ r9 L (2) while <condition> loop
9 X' G- F8 D7 a+ H& T" X; Q0 I* } <statement sequence1>;
. u4 H5 c/ f) m end;
! d. X/ P. @2 E' i5 I7 \& o( N) b3 c (3) repeat
8 J0 C, c& Z% @/ w+ G1 o <statement sequence1>;8 O, l' G; r5 }. P
until <condition>;
. Q' D# |+ x& S3 I! u/ J (4) for <condition> to <condition> loop
1 m9 z* E0 E3 q/ G0 [ <statement sequence1>;5 j; u: g; F. y) o( ?& q
next;9 G) i: R4 g% R! {/ ?9 q6 B
3中断语句) m1 f$ h7 \8 u
waituntil <condition> prio <integer expression>;& t; d, e4 p4 X2 V- a8 j; d
1 v. f* y4 @% O6 @ h! [% C3 m3 v4 x+ V9 x6 P/ b7 p
以上为常用的函数！- U' d. T* ]6 Y) |4 P& R' l! P
还有很多，如有需要我把资料发到你邮箱里 s! L3 G S! }
; u) Z' |. K: x+ ~! H. G/ G
9 S- W) d& z3 B9 U; B
6 C! a6 h2 V) m8 L! k# p
' a( p" p$ y$ E. b9 e
2 @3 f3 v7 F1 j
* W2 s- \4 J k0 {+ b& B' [( ]' E# U; G" I: K
7 L, r( m& D6 j+ y( N" a% G/ A) f
) s& A, z- L: s. y- z % @8 M) q! A( `: H5 Y* d
|
|
[复制链接]
