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发表于 2012-11-13 08:48:12
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1判断语句
0 o, D- U# ]1 N; A+ m) E2 u: H if <condition> then
c" z0 J% e4 B, N <statement sequence1>;
0 U. c8 Y7 h3 J3 v- N elseif <condition> then. x6 P5 ~1 ?& C
<statement sequence2>;
4 I5 M( @5 a- H9 B: M else
: t* Q% ]. }! f3 f' e7 J: \ <statement sequence3>;7 u7 S% Q, C, J; |% D) G
end;; l4 R4 N7 {5 @# N5 `9 ?% O3 m8 \
如果分支比较多,用:
' H0 z+ o) ~! n' E/ x% h4 f inspect <expression>. z+ D. [; k; G2 u( i
when <constant_list> then
% I1 m8 A: H2 o# u0 t: P <statement sequence1>;
! q* }2 ]: K$ d& t+ [4 z' B, O when <constant_list> then
& a1 p# @- F: h' ?/ R5 n* }6 q6 s/ m <statement sequence2>;2 _8 y: M7 n R! ^3 h6 g( n& R9 z
...
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<statement sequence3>;" e+ o4 G: T& i x. ?, s1 x8 ~% {- }4 e" W
end;) s5 K( m: D% T6 F' L6 p
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2循环语句8 A0 t4 ^5 c0 d
(1) from <statement sequence1>9 z2 x& c4 f2 s. [% \
until <condition> loop
8 k- r3 H B" R, t" P <statement sequence2>;
6 a2 N7 R) Z: \1 R. G% f end;6 ?! K* v% ^8 T$ h7 e
(2) while <condition> loop& u( Z/ y8 F% J3 k2 g4 ?
<statement sequence1>; A# x" t; ]" ]' @
end;1 I' ~' M5 @8 |
(3) repeat
5 p/ j( f% S) e& S; [: m6 S9 @, P/ w <statement sequence1>;8 F. T( t; E9 Q) l
until <condition>;
) e, F) `4 N# t- D6 p" U (4) for <condition> to <condition> loop
" F3 _& T, `' Y9 H, ] <statement sequence1>; ?! E$ P( O1 d4 t
next;) j1 |# o; x0 J+ r7 Y0 ]
3中断语句+ N# A6 Q7 e, @9 m" E: R
waituntil <condition> prio <integer expression>;
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以上为常用的函数!
; K) G! d. v- P& ~还有很多,如有需要我把资料发到你邮箱里
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