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发表于 2012-11-13 08:48:12
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1判断语句
' g3 A, y. x% ?7 j0 h if <condition> then
% ]' q& Y8 N. w$ X, P) y <statement sequence1>;
+ d8 e9 x! Y& z elseif <condition> then+ H( r2 @4 I+ w0 U
<statement sequence2>;) A- p; ~1 s5 J' e
else ' R6 Y9 n# n$ o8 {+ @- U
<statement sequence3>;
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如果分支比较多，用：
) X$ i, n9 O' U# Y6 [% v inspect <expression>
L7 N" l6 i+ w l) _3 C6 q when <constant_list> then
+ t2 G* c3 }; Y0 Z3 T <statement sequence1>;
/ G, b8 n, x- l) @6 y when <constant_list> then
: _9 G* w* O0 N6 I <statement sequence2>;
- y9 y' f6 o0 }/ x ...
1 ^4 z6 O( [) S- A0 | else$ `) P9 [( u5 D; n
<statement sequence3>;
+ J0 Z3 y2 U# M/ x2 w- N* N/ bend;
# h# C/ t6 X0 E$ Q8 a
* O- ]& V1 I/ o5 G/ T7 P. k2循环语句7 J4 m: C3 b! X1 H/ S
(1) from <statement sequence1>
/ Y% U4 w5 Z4 i5 k until <condition> loop
9 a/ N6 A$ g9 E5 _ <statement sequence2>;( v0 @/ |$ M* F+ K
end;4 C7 p6 @5 f2 o# a3 _3 O P1 N; K
(2) while <condition> loop5 J- a9 }7 R5 ]8 {4 O: j
<statement sequence1>;( M9 H& _' m; T& R* P
end;( Y1 o9 h! B. ~6 m
(3) repeat $ e$ A7 e% {+ G3 B( s: d
<statement sequence1>;
; w# d$ i* a, `4 K. D, G; t# s until <condition>;
% B" x! C# y9 Z4 u& h; \1 _ (4) for <condition> to <condition> loop
+ E2 M& o& r5 f P! p' Y <statement sequence1>;
: u( Q: `& N) a& J& I) g next;
( ]$ ~' Q. S% d0 a1 I1 W7 p1 m/ V3中断语句: B1 v( n4 n/ c# m1 X$ ^7 E2 ?% X
waituntil <condition> prio <integer expression>;
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% g! H4 K4 V/ C; `; M/ P以上为常用的函数！5 H7 T+ W. j$ l+ D0 Q+ L6 _3 c* v' ^
还有很多，如有需要我把资料发到你邮箱里 , R& M0 H* H( l$ E6 O, r
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6 \! A- z9 u; o& {- c: U* B% _
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