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发表于 2012-11-13 08:48:12
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1判断语句5 k1 x8 g; i5 `- B& z' S
if <condition> then
2 s, g- F( [" C0 g- k- D5 K# m <statement sequence1>;& _. ?$ V" L, {, q
elseif <condition> then
3 J1 _1 J& s; p# N& U- Y& D$ M <statement sequence2>;
2 Q' @8 f8 @3 j" j8 ^ o else
9 h0 ~& z0 ^4 C& A1 W8 r8 d <statement sequence3>;( x2 o0 s' p* l5 r* M
end;2 n" D, G# p6 @5 X8 J$ u
如果分支比较多，用：
- `% s) }: e/ t7 r; E" U: f& e inspect <expression>
: x" X M d8 I2 {* |2 ?! ] when <constant_list> then
( j. @: O- o% ?- w8 } <statement sequence1>;7 c. K! W( h; Y6 T: t: s$ m4 ?
when <constant_list> then
) H+ c) d. _+ _7 J1 \, d% X5 N <statement sequence2>;( T! G; m3 t, a
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else# p2 D- o2 z9 b1 H( s& U2 V
<statement sequence3>;
: q0 q7 `2 u- aend;
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* M3 \2 n4 G6 F2 ` F9 U2循环语句) P$ h/ Y& e; O4 t2 l8 B; d- b
(1) from <statement sequence1>4 W& `0 }( L/ o" `
until <condition> loop
" e& o. l- k1 x g+ K7 H <statement sequence2>;
3 d( h, k' ]/ p' d9 j" o% c% D end;
6 [+ s& j9 i( C ^1 s" ` (2) while <condition> loop6 {$ I: J' i6 N @( z% w% ^; O
<statement sequence1>;
& p8 T6 Q7 Y, \ end;- N# B4 n8 Z4 L, s% k8 \
(3) repeat
' [: U g1 N" O <statement sequence1>;+ N$ y$ H, A, x- v6 h
until <condition>;
) D! W: n. E f& N; g" Z# X5 C (4) for <condition> to <condition> loop- w+ B# D( n c' j
<statement sequence1>;7 @ R4 g- v D) t4 a
next;/ [0 m8 m' J5 z% V2 O
3中断语句0 F [6 |4 Q* t& d; Q2 H9 R
waituntil <condition> prio <integer expression>;
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以上为常用的函数！' ^) z: N( x( u" o+ l0 u6 u. Q
还有很多，如有需要我把资料发到你邮箱里
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