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发表于 2012-11-13 08:48:12
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1判断语句; T8 w; b- S& F6 C, ?
if <condition> then+ p1 P A# O h( H4 t H: d9 F
<statement sequence1>;1 C4 P$ n5 Y4 b" R/ S( N
elseif <condition> then/ J3 z+ @: J. T) S& {- C
<statement sequence2>;
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<statement sequence3>;& q, [. R, |% o8 ?; E
end;
[3 Y0 k: Q3 i/ T; N' [如果分支比较多，用：
8 M' d" Z+ o; { inspect <expression>
1 L9 L, w6 z K) n8 v: G when <constant_list> then
3 m$ [7 d# a- Z( X3 |, A$ E <statement sequence1>;: e5 y% v- ^4 D# @
when <constant_list> then- \, s: Z& |4 H4 s
<statement sequence2>;
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else
! @9 c8 ~ W3 |0 z/ m <statement sequence3>;
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. ^3 u! |6 g7 K( O2循环语句4 R$ R5 I" y3 w9 q
(1) from <statement sequence1>* Z( d8 o) u& t5 @
until <condition> loop$ c; Q+ d: w2 L& A
<statement sequence2>;
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(2) while <condition> loop
: [' y; c7 D8 k* |! B+ f3 n. D <statement sequence1>;
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(3) repeat
& @& y7 |* G/ J <statement sequence1>;) s; o+ M) r5 B' V
until <condition>;
" N" f/ [) C7 p5 o( \ (4) for <condition> to <condition> loop
' v) g: q$ ~# x8 \* A8 L/ ] <statement sequence1>;
, e: p5 L# U1 v' s! U next;
( o8 S6 K, N4 R$ ~, ]- w7 j2 v/ D7 h3中断语句1 ^+ E5 A5 y2 Q" L1 Q
waituntil <condition> prio <integer expression>;
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8 r! T! q: `# ?以上为常用的函数！& }' @6 O$ r3 s4 F. E- a
还有很多，如有需要我把资料发到你邮箱里
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