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发表于 2012-11-13 08:48:12
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1判断语句% ^+ c1 [8 t4 p
if <condition> then2 ]7 Y; j: u6 p
<statement sequence1>;" J) j1 Q; B b9 r6 r: ^$ w- D
elseif <condition> then
! ^' v& }7 o. a# U3 V; M <statement sequence2>;/ v5 _+ U: T5 y
else & ?! K1 f! x0 f0 w
<statement sequence3>;
; K+ e3 ?1 Z3 }2 ]& r end;" s y3 E6 \8 d
如果分支比较多，用：. I. d. l7 ^# n
inspect <expression>
& X, M% [2 ^( i- s when <constant_list> then( ^; a7 L2 {. n; |/ I. j
<statement sequence1>;
# r1 H6 d8 o6 _ when <constant_list> then
0 m' \7 c) h/ N; K5 D3 | <statement sequence2>;
% R2 S) N) ?3 h6 l' \8 M+ Q0 b0 p ...
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<statement sequence3>;1 ] e$ |1 c% }. N2 M
end;, D( S) W$ }: q1 q9 t) b3 f0 Y
" I) Z* E0 H4 q+ k& b- U }2循环语句6 G# k* U% n: k, j: ]% F2 C2 p
(1) from <statement sequence1>2 F* z% s8 R, U3 f& I6 t$ [
until <condition> loop
" F8 W8 @ a6 d# x _- K) k <statement sequence2>;* O, o. a& R, d) O# r% \+ J
end;# z. Z: s' g" Q( U( O$ O$ Z7 |
(2) while <condition> loop2 G. P3 D! L3 Q0 G
<statement sequence1>;0 M4 g6 w% h. _" V
end;; S/ j3 b B, l! D) B/ M
(3) repeat
/ E* S" ` W; R/ C <statement sequence1>;
0 s2 ~: q3 }# g" Y- M4 w3 ]6 f' E until <condition>;) E, Z; w. T; J% Y4 C; P
(4) for <condition> to <condition> loop4 \+ K- h0 B- x$ T- B
<statement sequence1>;
: d& b- y: k0 H next;
8 P1 h. G: u1 S) a' m3中断语句
8 I) {4 L2 p9 |/ U0 U waituntil <condition> prio <integer expression>;4 r' A+ o# Z1 l/ \! }6 Y3 `* o9 N
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: U3 d% k6 s7 |$ p以上为常用的函数！
$ n- n% f: ^( b, \8 U5 d( z$ ]& I还有很多，如有需要我把资料发到你邮箱里 / u! e. n% K0 F5 g+ v
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