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发表于 2012-11-13 08:48:12
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1判断语句6 N, V/ G% s; G
if <condition> then0 R9 c9 R! z: ?7 E
<statement sequence1>;8 V5 X, p$ D# g0 \! E
elseif <condition> then5 F* V3 o4 i$ Z( g' e
<statement sequence2>;" @1 V, U$ J1 e" h. n7 d! A
else
) K% J. S8 \8 H% v <statement sequence3>; D: g1 L% c4 S1 t
end;$ x8 a. g/ P) g9 v! m; [! j& \
如果分支比较多，用：9 ]( c: ^) S* {& _5 Z8 ?
inspect <expression>+ i; i% Z1 p. H$ V* y9 ]' G& E
when <constant_list> then
7 ]/ b+ k- Y; b a' X+ s3 N6 } <statement sequence1>;
' Y" d; h( @% e: s" G5 q when <constant_list> then
x5 V3 Q% S, A( z4 J$ F B0 i, F <statement sequence2>;. y/ ~, v& l, ^# Z
...* \; {+ ]) k. ~% Y3 G% Z1 ^
else5 p2 N1 V- \) L+ U
<statement sequence3>;0 f- e& T! J6 K# U: J- q
end;
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2循环语句6 x; L @ n! ], M6 Z5 F
(1) from <statement sequence1># t5 V4 `$ R8 M9 { O% V7 j
until <condition> loop
; ?% _! T' C) u( y0 R7 A <statement sequence2>;6 a! \6 h2 z0 y8 N1 _& K
end;
' B% |. S& I* L# o, x (2) while <condition> loop$ j" f' a2 I8 A+ \& X' c9 e
<statement sequence1>;7 u5 E6 F% ?+ e% g$ F0 Q
end;
$ A0 x1 F6 c" U+ n (3) repeat ) F; O! j0 P7 a. e( L
<statement sequence1>;' t* P# e; q g5 q5 R1 X4 s
until <condition>;
; O0 q H+ U: y& G" G$ A! E" y (4) for <condition> to <condition> loop
8 k1 H) n3 w X- w* V1 U2 V8 t <statement sequence1>;. J8 e! O8 N( q
next;. d" J; U, ~0 h, j: t7 J. I! v
3中断语句. \4 W# [. T7 U7 s Y7 a2 X R0 N2 f
waituntil <condition> prio <integer expression>;: ?% T O% p/ o
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以上为常用的函数！3 X# m$ W: H5 _6 R7 d
还有很多，如有需要我把资料发到你邮箱里 % h' X7 o6 `. H7 O
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