|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
, _/ V& x6 l3 B { if <condition> then! |5 \5 I' H" ?7 Q4 w7 q
<statement sequence1>;3 o" J8 l7 p: ~1 e( M
elseif <condition> then
" W3 {2 o& x7 r6 X <statement sequence2>;
& [ u2 k# ]1 ?# ~* W else - X+ U# g5 i6 |9 _
<statement sequence3>;5 u3 r/ h: [" o) }
end;
% e4 e4 ], B" L, A如果分支比较多，用：% y! D/ R& w5 e; t% F3 m
inspect <expression>% M& s: H- _% i7 j3 ]! X
when <constant_list> then3 {$ j- o! c- y
<statement sequence1>;
. p- g% ?( Q- K6 k* \ when <constant_list> then
$ R/ n9 o" l6 t9 j1 h, c <statement sequence2>;
4 j2 e6 K" H6 D, I/ P2 x ...
0 n e. l" T% v1 {) K1 F; }: s X else4 H0 K, e3 |9 U& s2 c# [) C8 D! n
<statement sequence3>;
# i3 ~7 @& }7 H2 q/ }end;/ i, e4 ^' w# |/ o( G) `. G( i5 j
& u9 \% W3 e7 D/ G, E' o2循环语句 c% v+ V+ H5 A8 A) J" y5 D4 O
(1) from <statement sequence1>( w0 R# ^1 r; Q$ u9 K9 p5 s/ U
until <condition> loop2 P- Q' U* l; [; F3 f! Q0 ~. q9 y
<statement sequence2>;3 t( f! j+ N' y; w3 T
end;
; z1 }8 C0 g, y, X& l3 G (2) while <condition> loop0 A' r4 N# o/ [" i: c) X. o3 K- ~
<statement sequence1>;
& `, P- v8 K8 u$ Q end;
* [% M. v8 K A/ _/ k' Y1 j (3) repeat
% D9 Y- y: s5 O# Y I <statement sequence1>;
9 K8 M4 C) F) ?) } until <condition>;
, l* ~" W) d- h, } (4) for <condition> to <condition> loop
9 e% r0 [+ E5 A! W) ]" c <statement sequence1>;7 O- H' V# I! g
next;
3 h2 q+ u4 k0 C* F3中断语句
3 s* n' x. B S$ T) L u6 [0 X5 E waituntil <condition> prio <integer expression>;
/ M9 r! o4 G! J2 X, M! s( r1 |% h: g1 R( U
4 r( _5 i8 T# ^+ j* i- `
以上为常用的函数！
- P$ c( n- W/ [7 X& E# F6 ^还有很多，如有需要我把资料发到你邮箱里 8 x# X9 \+ k8 d2 a' j
3 \3 R, N: {) n% b
8 ^: k- \& @! n. E6 c! h1 z/ G; u8 @" D; [2 i8 T3 I' V( }& h% b1 G( I
4 i# q& B, m. g: {5 ^/ H+ X
7 D# a# Y; ^2 D! h. n$ P4 l
* O& V/ n M! |
" J7 D; C, _( U, _/ ~
& [6 q/ n8 g4 S5 p- p) u9 p4 m% F/ y$ r
+ m# R ^" X' B. d! Q- E/ i
|
|
[复制链接]
