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发表于 2012-11-13 08:48:12
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1判断语句7 m! y5 s' S' X6 f. o+ B0 i1 w2 J
if <condition> then
; @% X8 V) j- J <statement sequence1>;
' C. t$ g& O- t# o4 i2 Z# J elseif <condition> then
$ a9 C0 i5 L9 O9 H <statement sequence2>;
& L! ^9 {, R# i' M else 0 t7 s( R6 E) T* a* ^6 x
<statement sequence3>;9 O- m* B8 o5 }0 q
end;' Y& {3 y/ z* Y
如果分支比较多，用：. Y$ m' a/ i" t' M/ y" R$ Y
inspect <expression>
* u$ l- n+ V/ _$ z when <constant_list> then
0 M5 z$ J! O$ l" o, |* E <statement sequence1>;
* Z9 w; `, i! L0 e when <constant_list> then8 u( v; n2 x9 t; L8 w8 r
<statement sequence2>;$ d$ g o, K- X4 F/ G
...2 r) P. Q; Q' K+ z% |' n9 x
else; C" u* ^' R( C6 x' }0 p
<statement sequence3>;$ d; ?( X; F. q
end;: l. H$ W: w. f' y8 T4 Y
: N) k9 T; Z1 ]& A# M! F2循环语句, Y8 ]8 N9 N3 I8 }
(1) from <statement sequence1>
" N" P5 Z# `7 l b3 E: ~; G0 d! U until <condition> loop
+ n; n$ Y% K" q <statement sequence2>;
# X& l2 {2 f% [ end;$ j/ ]5 X3 f% a
(2) while <condition> loop$ o* `; N. z9 Y" X U$ J' Z7 f& Y. Q
<statement sequence1>;' B8 O+ E; t/ Y) W0 V" M9 `
end;
4 v( p6 { s# \) n8 }5 u (3) repeat
. g0 G" m- M" O y: p6 n( O: b# r <statement sequence1>;
) i2 r9 k9 E2 M& C until <condition>;) @9 h: o" `; }+ ]% u
(4) for <condition> to <condition> loop+ W3 s2 h9 e |( J2 X0 j
<statement sequence1>;- y; a0 O, `; o @3 T, y
next;
8 Q0 i, x3 \% Z2 ?4 P+ B3中断语句% z% ?* ] L- v0 j
waituntil <condition> prio <integer expression>;
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0 B$ F# F7 G2 @以上为常用的函数！7 R* A+ g' ?: c6 u- [' i
还有很多，如有需要我把资料发到你邮箱里 \! ?8 M" }( X
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