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发表于 2012-11-13 08:48:12
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1判断语句
! }$ [! c$ q! s9 @ if <condition> then
b% d8 ], y; z <statement sequence1>;
; c p* |0 X/ Z! v: d elseif <condition> then
6 w# l+ b W \0 A( ^4 \' P <statement sequence2>;
; k; z/ U3 j) A) W8 Q5 p else
: a9 C0 r# n2 T+ n <statement sequence3>;" S/ S* ?4 t. g. A+ a8 x W( w
end;" }, N* d. l* {6 \( m+ T
如果分支比较多，用：4 [3 Q5 C" q5 X2 k9 j4 ]) |6 y
inspect <expression>
. L: a3 K6 M. |$ R; d when <constant_list> then
& i# f+ l7 c' O- @ <statement sequence1>;
/ u+ l+ G0 \0 R/ w( t4 y/ T% p: A when <constant_list> then: c" [# b) Q6 M5 P+ k, N
<statement sequence2>;' h) P- m# T2 |# s( ]
...
1 F! U5 U: p- K$ | \" B else
" Q* \1 W8 E+ Y( z2 v+ s6 e$ j <statement sequence3>;
; x3 P E, q' s, hend;
" x y( s U' @8 p6 X2 L& u' h
. V- j f1 o# q$ L8 s2循环语句
/ ~9 P0 U) C* I! Q+ W (1) from <statement sequence1>
+ Y( i8 m; f6 H% J% L until <condition> loop
3 c; m0 @' S: a5 }0 L- R+ M' d <statement sequence2>;% J5 y0 }/ F, l7 T5 U% q$ m, h0 u
end;
' T/ N% n. a( c8 S6 v) H8 }, L. [ (2) while <condition> loop0 f/ e6 W1 T0 l ^: p: E# z5 G4 t
<statement sequence1>;6 I9 D Y+ T" o" B& X4 e2 V$ I
end;
. k( T0 w8 | d9 ^- @ (3) repeat ) w& I/ b6 \% i l2 Y* R4 M% @+ t
<statement sequence1>;0 ~1 Z8 @% u) d7 e( p. }
until <condition>;
% Q- ]3 e. z i9 F (4) for <condition> to <condition> loop
( b4 k+ p5 v; K& l B( }) ? <statement sequence1>;: W0 _8 ]& B: b* ]* `' q1 q
next;9 f! I! J, ?- u
3中断语句
1 J1 N+ O3 Z! u8 |0 m. M: W waituntil <condition> prio <integer expression>;6 O/ Q+ I4 @/ i5 L) B1 }
) o, H' o$ a+ s! ?( ?: I
/ ^9 M$ ? w; t* w0 y# ~
以上为常用的函数！
) J o; B# R% q4 `+ s# {0 z7 {; }+ S还有很多，如有需要我把资料发到你邮箱里 + [" W% h, {: w1 y/ \3 p: |
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