|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
9 S3 P: U$ \/ c2 t* e if <condition> then
5 J$ p( l1 i( F8 o. e <statement sequence1>;, e! t' M. v# _; e+ Z
elseif <condition> then
% n5 M3 p, ]+ ~/ t" {3 D3 U <statement sequence2>;% O6 \0 f P% n8 m
else ' M: G3 @6 n# v% z
<statement sequence3>;
: f t+ U0 A3 L' @1 C7 f/ n end;( t5 K% [$ g# a! ~: i3 O8 G
如果分支比较多，用：
0 S" h- S% _3 u3 ]% j( X( G% f( h inspect <expression>7 a+ r0 q3 W ], e8 [2 |
when <constant_list> then
6 ~* w, }8 A2 p! M5 G, q5 S <statement sequence1>;
" j5 x) i( w6 h3 W O7 C when <constant_list> then
+ W# Y- g. w% c2 S* @ <statement sequence2>;
1 m0 G- A5 I* m. \; x ...
2 P* d+ F; o7 t4 e* D( o! t3 g( E/ E else
' l+ r, w6 V d3 u0 u% k( ?0 W <statement sequence3>;, O& V" ~9 J, p3 E6 |
end;
' t P" L) M! F2 i9 x0 w$ e6 {, n
6 K/ A" Q! }; _, n6 m0 |2循环语句6 ^, T# Y2 i& X4 E! I9 O3 o4 _
(1) from <statement sequence1>' B5 u/ N& q3 J8 e( }
until <condition> loop
! K/ O# g0 h' J: W* i, d+ | <statement sequence2>;" E* l1 U! q" G- s8 s
end;8 W9 u+ ~# G# E/ G6 J/ {+ W
(2) while <condition> loop+ w+ b$ V6 f( ]. \% ^" b
<statement sequence1>;
5 A" U6 ~1 C! q$ f end;. A0 T* `5 \5 Z( T- G* B
(3) repeat
- N, V; W% ?7 a5 Z. P+ y/ L <statement sequence1>;
L' g {0 Y# T until <condition>;
! |9 o/ O, ~/ {& o (4) for <condition> to <condition> loop1 H- i& \) Q9 }# f6 C9 h
<statement sequence1>;( c: A! b/ V, R Q: D, H
next;
7 e" [: Z% x% ^: l3中断语句* Q _; r; @/ o7 y& v" V
waituntil <condition> prio <integer expression>; p9 v9 ?2 B9 o, x8 b
/ e* M: l- R, ]5 P. j$ N
4 b5 o q, L9 k7 p K以上为常用的函数！/ Z8 A8 J/ c$ t
还有很多，如有需要我把资料发到你邮箱里
1 `# m" L o2 A. r
9 D- s5 M$ _% @
5 U% c w. w% T% X4 |5 ]! j, T1 x2 U$ T4 K( Y+ ~. c
/ k4 T) ]5 p# M& u3 Z/ f
" T5 x& B5 r+ H+ N& g2 N* l
B, `$ d U/ r) P% ^
' e2 B/ S3 D6 d- i4 P. [+ h$ T w* W; e; M
: \4 a$ j( k( m0 ?
7 k/ O; [$ F# O1 J/ S
|
|
[复制链接]
