|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
3 o5 s. T3 a1 o; u( |# @ h if <condition> then# d( q# ~* G/ O# w
<statement sequence1>;
! C2 _3 E C6 v7 n4 |/ l4 a8 q$ x A elseif <condition> then7 Q6 B W/ s9 [
<statement sequence2>;0 d3 k$ s& z/ S; w
else , ~; |7 e1 H' C& w
<statement sequence3>;
- _% ^: ?! e) K. X) R7 N$ h# g end;
7 e( \0 a6 C# u如果分支比较多，用：
. ~, T3 P w6 {6 J- S3 G: N2 ~ inspect <expression>) K& I+ v6 U3 G' h" |1 e# m
when <constant_list> then
' _9 g6 F) \+ o/ b <statement sequence1>;: }8 Z0 C; j0 n5 ^6 M
when <constant_list> then, E) D9 J# d8 b/ v
<statement sequence2>;
- ^: d' @+ I" f( W ...
j4 S5 [8 p! E5 m" h* s2 R else% K+ ]% U0 U7 L( q& {4 b. l$ u9 u
<statement sequence3>;* P$ v- Q0 D+ ^- W2 j* g
end;& h0 ?1 t$ x+ l8 q( `: S" d H
8 C d2 h% A: O3 P% @& ]6 G( c' n2循环语句
6 F* S& ]6 P, u (1) from <statement sequence1>
+ g( O8 N: d' |, X. T3 T' q! E4 h until <condition> loop
8 x$ a: ~9 K. ]8 P$ M% ^: Y5 ] <statement sequence2>;, x+ _5 ~2 M% B8 q3 x$ }
end;. g; l F1 g8 h5 a+ {& Q% O
(2) while <condition> loop
8 G3 n6 Y) I7 N) a3 l9 @' x <statement sequence1>;
z. i& L! k8 l1 v end;$ M+ j8 J$ E' W* d$ N& Q1 x" ~
(3) repeat . O! x- x/ @: H
<statement sequence1>;, r5 A. |/ o+ ?. s+ y+ x
until <condition>;+ V. Q. J1 U9 X( J& C# A
(4) for <condition> to <condition> loop2 `* K# h* H8 S0 n
<statement sequence1>;3 ^. m/ M* x H! b
next;6 P8 S& S2 t' j0 a) x
3中断语句* W, Q* v& R& r4 E4 ^: p& C
waituntil <condition> prio <integer expression>;
( `4 |5 F# a" |" p. ^" C5 H; K
0 {, r: c* e) Y$ d" Z. }" v9 B以上为常用的函数！
3 l; p1 G) U3 n, ]9 ~0 i7 o还有很多，如有需要我把资料发到你邮箱里 / R& ^& t; C6 ` G! C' O+ N
& S) k. M7 B) S/ z. _7 h d7 b
- ~" I: L/ X e5 N" J* T7 p* n* v! }
- B% ^( A: X0 L/ P1 w3 H9 \
# r( V# O( z9 w% w0 `
5 c- I6 n' L. J/ k- m3 o# {0 g" i
4 U$ ^4 T& W( Y3 e# V
* T ^* Q3 l$ {* @$ K+ Q8 U) `* b: p6 r: |
+ F5 P1 i3 m r: P1 { T6 { |
|
[复制链接]
