|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
1 Q+ [/ x1 m6 Y% x6 ~ if <condition> then& B! p' E* b5 J" W1 [7 ^. G( l
<statement sequence1>;- T; l1 I& [! ^" W4 l& v& X
elseif <condition> then
+ H! U; m$ T% H! D <statement sequence2>;! G' c9 d' s+ h. E+ P8 T- H
else
; I3 k1 n0 I6 b- X+ h4 X; h6 G& H6 s8 S <statement sequence3>;$ `1 b0 M3 }' ^7 S ^# b. l# r2 ~
end;& \1 y+ V5 q% a& `& M; I9 b- \
如果分支比较多，用：+ y7 j7 U q' D- F
inspect <expression>
. O! C+ }. o, o0 j7 |0 D when <constant_list> then
! u5 }! Z1 f4 ~4 X' M& K3 |: Y <statement sequence1>;
- G3 r* o2 r1 I W: o! L when <constant_list> then
: X7 c! S5 P. N& a$ ]- @ <statement sequence2>; Q( S3 R* w& C+ j
...
* w$ W6 d7 {% o7 r9 o8 m8 Z else
8 l6 h, B0 e6 g$ \( g, t4 s <statement sequence3>;' R$ s) z( D8 l* p
end;8 n4 }, i5 x/ L9 P* Z& B: E. S7 z& a
# x& U" Q' x9 x O% L0 S: }$ Z) O2循环语句7 k/ t; \" }+ f" ?
(1) from <statement sequence1>
1 t3 p+ S1 p; L until <condition> loop
1 S% q# W2 J6 C7 A <statement sequence2>;
, D# x9 Q: g- x8 X" |4 G$ ]: b% t; V end;" T. \2 Y# r' g& D
(2) while <condition> loop8 j2 L( F3 o& k# b3 s# d7 ?+ L
<statement sequence1>;
; \& W# K) W( g8 j9 i: C4 } end;
/ w; p; K. G7 [ L P' W3 v: u (3) repeat * B8 Q- m+ @ q2 g
<statement sequence1>;
8 S- i5 B* ~" w until <condition>;
) f# O4 b$ n _5 D7 r3 q (4) for <condition> to <condition> loop( v' A' H/ @, ?$ _5 T/ C
<statement sequence1>;
7 C3 H5 g, }. J( j2 N- X next;
7 D4 w& z, z ?# h3中断语句
) G. q6 I0 \' @5 i) m" v waituntil <condition> prio <integer expression>;
8 U! \3 f$ O: R5 J
+ a0 w2 l R% J% @- D9 ], H) q- f/ Q0 K; {" P7 O
以上为常用的函数！, w+ s9 d5 b8 t
还有很多，如有需要我把资料发到你邮箱里 ! k0 l1 [" K6 f$ Z# l. e
" v( L8 f a3 o" N* {* S4 e- A# ]1 l3 G& @6 j/ u$ Q
0 K; y( w" P& v' W# @+ ]
# l. J( r% Z* X6 c* s
- b( W7 ]& S+ ~5 ]6 ?, Y/ m1 S# P. V8 ]/ v5 u3 E
8 K6 c* F. b, _# m1 O& J
6 X$ L- p+ p5 R: Q. O
' S! o; o- s( e$ ^ 8 a# i m* m! W: L8 b: Z
|
|
[复制链接]
