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发表于 2012-11-13 08:48:12
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1判断语句
; ]- g) Z0 ?9 _6 f' d if <condition> then2 I) a& ?6 W+ ~3 I8 a( B9 ^
<statement sequence1>;
8 S4 |6 ?3 y. ~' D% G elseif <condition> then! Z, j9 F$ D( D: p! B4 K2 i
<statement sequence2>;
$ I3 g0 F& l& l" Q' { else
& g/ |" a$ _* |* N+ X0 { <statement sequence3>;& u* e6 \+ N" \% X) G( @
end;# k/ X/ a+ n( E5 \/ b
如果分支比较多，用：
2 D( P; @7 D6 m- n# K K0 W# c inspect <expression>
5 b* c5 M% n( M9 {( q2 h when <constant_list> then
* ?: ^. r, `' a4 e$ ~* X <statement sequence1>;; r9 s3 q. b( a: j0 F+ A1 C
when <constant_list> then0 V. d' m M+ h) {
<statement sequence2>;
k5 S- K+ o1 R z ...
3 v- `: }, M' L7 _+ W& u4 h/ s else
! K+ G- |- r0 c* s9 }5 C% i/ P( j+ w <statement sequence3>;
5 g/ G2 ]$ n% N6 e" Pend;9 Z# t; b e0 m' t Y$ `( F Y
7 R8 c8 q' G. }* y: j2循环语句
1 [3 t1 r/ P5 P' H (1) from <statement sequence1>
% w: Z0 \) A5 i$ g- K% S until <condition> loop
5 ~6 [ \, L' E/ z! s0 E- { <statement sequence2>;6 B- q( u s6 D8 X& I
end;
) E" x$ M" p/ _; X1 L (2) while <condition> loop8 e( N, {; C S: B, M( K
<statement sequence1>;7 ] M! A4 b! t/ e
end;
5 S% x, t# f8 H' e4 a! F# O. b (3) repeat : ^6 k; c5 F2 l6 u
<statement sequence1>;* O& I W. R% r$ e$ P
until <condition>;0 h/ y. h6 _% V/ }0 ]
(4) for <condition> to <condition> loop
1 W$ ~9 Z8 b( D" f: p0 K$ a <statement sequence1>;
9 E: _! V4 [" I' H next;, Y7 H+ U. Q) I
3中断语句! X% D6 C _( X0 i o; A
waituntil <condition> prio <integer expression>;% z) b& ~! i: X+ M+ n
. ~! Z# w1 J* Q. G* _% m- J l( z
: A4 S- G0 ?- r9 T$ \" m* U( P2 _以上为常用的函数！
3 T0 v1 K( T. x还有很多，如有需要我把资料发到你邮箱里 ; B& F+ E+ {1 G$ ?% j. t, ^8 @
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4 q2 _8 P: P2 i* }1 H 2 _! l& z D8 E5 w( f2 z
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