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发表于 2012-11-13 08:48:12
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1判断语句
) r5 }# p, v) v9 u5 L3 K: _ if <condition> then: p# h; U1 n7 r: K! S
<statement sequence1>;- V- g3 W2 s! C W" n' {
elseif <condition> then5 y4 l, p. V; M
<statement sequence2>;) t4 H7 d2 n' ]
else
( w2 n% V& P( \, c$ G: _; b9 z) K <statement sequence3>;
' ?' \5 U P3 B! c1 H, j end;
6 P" B* _0 x6 [4 ^" n% |2 ]/ E如果分支比较多，用：. h( A4 k1 u' U. J
inspect <expression>
& K3 r* F/ B. j( l9 K& c when <constant_list> then, x. W0 a- c& I. d# D& p0 Q
<statement sequence1>;9 }2 z7 _8 w: J) H" c( Z8 Y
when <constant_list> then
3 M$ e8 F) J4 g! F <statement sequence2>;8 z0 [6 n0 J5 j+ i: c8 p
...
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<statement sequence3>;
" V$ a% ?& j& T3 X5 H4 u% zend;" _& D8 q* l0 q$ Q; \& f
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2循环语句7 u* |- R! R( b- ?7 I0 J$ F
(1) from <statement sequence1>6 s" C; o" ~. j. o1 Z
until <condition> loop
: R. m6 r9 E+ N8 a/ u- R <statement sequence2>;3 ?4 L N# V0 G$ h4 y, _
end;8 z D$ m* T7 v4 Y8 \+ @ c. g
(2) while <condition> loop
9 n" ~8 \/ r" ]; [ <statement sequence1>;
, l+ ^1 F; B) K0 U! E3 } end;
7 W3 ~4 r+ a* d: d3 N/ e (3) repeat
! O1 a* K4 r) g5 @ P2 {' K <statement sequence1>;
0 C' y* r) t' V. f, Q5 D( a until <condition>;
2 Y9 z1 l0 q3 R: P7 Q( Z (4) for <condition> to <condition> loop
5 @, f$ m% T& M8 ^6 {% J U5 [ <statement sequence1>;
# X) N1 s9 i y# c: T! p next;
$ s1 N6 U( y( c# w4 A3中断语句! a$ V$ i% |/ @7 e1 @$ Y/ ?5 U% Z
waituntil <condition> prio <integer expression>;
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以上为常用的函数！/ i" q" [1 ?" K
还有很多，如有需要我把资料发到你邮箱里 : m/ L& f$ D9 K& z3 p: ]6 p! q6 a. @
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