|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句 u7 H$ ]8 M; m' D9 R
if <condition> then
6 t; l: A5 W+ [) s- a9 d <statement sequence1>;# [, P& m+ A6 O$ x0 p7 v
elseif <condition> then
' i) M! v# x7 ?3 T <statement sequence2>;
% D. {& t9 u, x) [& Q* x% c else
( L! C' I- p1 E; U. }- d( _$ s <statement sequence3>;
( z y/ R' c% W end;
4 \) F0 a2 C3 ?1 K9 z如果分支比较多,用:" U7 ^7 d0 e1 K
inspect <expression>
2 F! B* S" ^1 B: X ~# L when <constant_list> then
$ Z% _; X" |; ~. Z3 C <statement sequence1>;2 n+ O. @, n9 h9 B* G
when <constant_list> then
7 M( \. Z, }( ^# s <statement sequence2>;
0 A3 J7 u6 r" G2 E3 p2 _* H a( |' o* Z .../ C) o: n: w. R3 l8 z* v
else
I: y4 @0 p0 A" S) r9 A. @ <statement sequence3>;
. H6 {" x" e6 v4 Kend;- P1 J2 t5 v% _" W6 w( G
# E1 ^6 G2 T. f m5 P" E
2循环语句
% K1 {% U9 G# @7 u7 F$ @ p (1) from <statement sequence1>
9 w8 d* `5 u- T& _0 } until <condition> loop+ |( y& k3 \$ z% a' T/ x" t8 }" ]
<statement sequence2>;5 g) h( u# L" s! X
end;: {$ _% g4 V @* s9 p
(2) while <condition> loop
& E( g6 H& p3 T' u# l( [ <statement sequence1>;
0 S i# g0 D' N end;
! m$ q* ^6 E( R4 F3 ]- q% z (3) repeat # ~+ P( `( e- V# v" z+ i0 l
<statement sequence1>;
+ w; O" \6 H* X1 e, i until <condition>;$ Z* r( U t% x1 \9 _: I
(4) for <condition> to <condition> loop" [. D6 e- ]& I( @, v
<statement sequence1>;
9 [3 Q$ R0 p. u f9 v1 i next; N3 c( p+ Z5 ]. a. T8 b
3中断语句
; ^8 z F8 k z0 ~! Q: D waituntil <condition> prio <integer expression>;7 }' |4 [) Z: o) J) B8 T
, P6 H# A! Z$ p1 x. m/ D, `0 ^( B/ Y. q
以上为常用的函数!
' h% u0 i# S/ V% F( G0 S- i还有很多,如有需要我把资料发到你邮箱里 4 r1 f9 n5 R) A
4 Z9 ]1 s" Y+ i" N+ a( \/ ]# {' R
8 c+ F1 j; w. F" h; q
) _5 T/ x# z! b8 p& N
$ n# \$ q8 {- v6 k# ^$ U7 F6 x6 P7 B
, ]1 ?- n% [. _; e( R7 k; o7 Z z$ I3 @
; t; q. C; S9 \% ?
" O& `, _2 S- p& t5 \ u" O8 S + z: c0 k- L" f
|
|