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发表于 2012-11-13 08:48:12
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1判断语句 t$ ~4 g: z: N- v2 H
if <condition> then" i; \' \3 B- q8 m
<statement sequence1>;
# B a. @& |' T' a$ M elseif <condition> then
7 G8 y/ o# y. p1 m) W <statement sequence2>;9 G. ^2 b! \0 X4 y. _1 e, T
else
) i" Y! O8 L1 ^. u$ p: c3 K: m" y8 i" l <statement sequence3>;, @8 F, f6 {3 F
end;! R, e* b1 |. P# o0 F! y8 A+ f9 n
如果分支比较多，用：
' I3 F& n# m* d inspect <expression>
3 c( i2 v Y4 z" |7 p8 W# e" L when <constant_list> then
+ ~, R4 x, G* F5 ~/ K- W <statement sequence1>;' C A! y* w3 X
when <constant_list> then
v5 p0 ?5 _1 {+ r <statement sequence2>;
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else
# g+ s4 z* ?. T! f: \& M <statement sequence3>;
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2循环语句$ x" B( n" H/ S: |) p# v
(1) from <statement sequence1>& c0 I8 s+ ]2 a* K! ?
until <condition> loop0 ~1 j& }1 L3 t1 h; D+ P5 D& Q
<statement sequence2>;
+ S5 B# ?, j; Z6 \0 J+ W( \& { end;
$ e4 O/ i/ o+ u& w* i& B. H (2) while <condition> loop" p4 b9 \1 s; o6 g7 m0 Q
<statement sequence1>;5 W- x4 B! h2 J! k' I X* c
end;: B9 H$ F) R' H+ r4 ~: z, x) N! |
(3) repeat ' s7 j- M1 S! a. R. D( R
<statement sequence1>;
U) J0 I, M. a until <condition>;
. ?; Y, _. L2 P (4) for <condition> to <condition> loop0 L% Q1 J X2 M, h
<statement sequence1>;7 k9 B1 {, A! d3 D4 z7 ?
next;
& l; |4 X j' l" i7 W$ `6 U# s8 H3中断语句, T2 A$ p4 A" Y- K! S: r' i
waituntil <condition> prio <integer expression>;
# I# r* b& q" n+ o
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) @! M9 c; h1 Z+ _' F0 \以上为常用的函数！6 V8 M6 ?) L) C3 h% V% k0 U. i
还有很多，如有需要我把资料发到你邮箱里
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