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发表于 2012-11-13 08:48:12
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1判断语句( i6 a& J$ m1 p6 e2 q& w! N
if <condition> then
: U- g1 Q* D- M( b <statement sequence1>;/ e7 `! R5 }, r) z
elseif <condition> then: O1 i" D6 D2 \
<statement sequence2>;
5 {+ }* n) y1 z4 e. D' ^5 m- r else
5 i/ u g3 i, L5 j: s% n <statement sequence3>;% i# Y8 e2 \( q" `$ R0 W, o
end;
! e( L/ J; k P8 A; [" @1 P0 o: ~如果分支比较多，用：
$ C' R1 Y8 e) C$ K) _: h inspect <expression> j5 b+ E# {: j* `( t9 t b: d
when <constant_list> then
# y# c( S1 E, I! p) }9 ^6 z <statement sequence1>;8 [8 l% j' U* X) L# _* u
when <constant_list> then( ~, u# J& I6 |0 ~
<statement sequence2>;
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else: J( r- s4 n1 X
<statement sequence3>;. ^) h! o/ j6 a: ?( {3 d0 g3 ?
end;/ r/ ~4 x( |9 k6 D
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2循环语句8 m* H" p% f; `
(1) from <statement sequence1>7 p% ]; S* Y1 L" d/ k; [) @3 m' m" X
until <condition> loop
' ^& U- w/ r+ C: t N <statement sequence2>;5 O7 h' t$ T; w& L
end;
2 z% L3 S! X& d5 D n (2) while <condition> loop
3 k% o; \4 e, X R <statement sequence1>; @4 S f6 R& ?
end;1 ?7 B6 U! M7 @6 _
(3) repeat ) E2 B. ^! n2 K3 @' e+ K; e' E
<statement sequence1>;! @" ~' U! \4 m5 a3 z- J8 E! J
until <condition>;; {7 Z, [5 E! J9 K" I* W. F
(4) for <condition> to <condition> loop
3 H& v8 C3 L0 X J2 {/ W <statement sequence1>;
& g; \0 x; C2 } next;
, C) I4 l3 k0 k7 J8 ]5 a% j, ~3中断语句 v" R. g1 C, I6 | l, R
waituntil <condition> prio <integer expression>;5 r" A& @" ]2 G
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' m# j0 L/ Z8 N! T8 a以上为常用的函数！
! M5 B" x B5 z8 N还有很多，如有需要我把资料发到你邮箱里 0 L. J5 U4 T# e+ ~0 p
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