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发表于 2012-11-13 08:48:12
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1判断语句6 f8 t0 A2 T5 M% {; Y
if <condition> then
! S! X! F D, v( _, G! \( l# C: S <statement sequence1>;% J6 u7 i) K$ |1 j+ a6 o2 W
elseif <condition> then; v! N N5 ^( d; ]# L
<statement sequence2>;6 O* R H' ~/ O/ w$ w" D2 x( z% |
else 8 `' [; w: ]0 |3 M( Q
<statement sequence3>;" I3 ^9 z B/ m6 k' ?/ E% U9 L: H
end;% U" U: t; I. I0 }( M
如果分支比较多，用：
' `, ~9 u* N( G0 { z. S) B inspect <expression>
, q& u2 J2 U1 S, x5 E/ t when <constant_list> then
^0 X2 X# b& d/ Y* T0 w+ F <statement sequence1>;. ~7 l) { J( G1 p- Z
when <constant_list> then- R' K) A5 ?9 Z4 u7 }, u4 C9 E8 K
<statement sequence2>;( T7 M" Y* O- [7 [9 I/ \
...
8 a2 b) O; K1 b0 M: p* v( o4 u2 e else
i7 W; X. T6 a5 \5 J. x$ A <statement sequence3>;
9 F) x. J1 ?' J8 z, p3 L" t7 h( l7 rend;
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2循环语句- m4 A- n, n1 H" z
(1) from <statement sequence1>
) k) q+ X8 C1 ^4 Y* w- Y" d: D until <condition> loop" g8 X% O+ P$ O: a
<statement sequence2>;( L4 `) Z7 C5 t/ s* {; p9 y
end;
* S$ X5 n9 a! [( T+ m+ {% ~ (2) while <condition> loop
, G3 P, {1 u) S n- ~/ c <statement sequence1>;. O0 A- n9 N9 X
end;
0 j# C/ ^- {, _ y: A R (3) repeat
2 l1 H. I5 ] I- B <statement sequence1>;
- n0 ?# t/ d) s G- b( M8 ~8 ?0 ~4 } until <condition>;# C4 h* i2 q" @) w( L
(4) for <condition> to <condition> loop
/ S; [# H9 o7 p6 X/ o5 q <statement sequence1>;
* @: G2 Q& A/ j' n0 I next;
) h5 s$ f, r: V( `3中断语句, ?5 q8 `: @- Q# T
waituntil <condition> prio <integer expression>;
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. |% x3 z: Z+ U% c5 V7 c4 ?以上为常用的函数！% e# E: ? d! J2 x
还有很多，如有需要我把资料发到你邮箱里 1 l* c; n- e; k) p
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