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发表于 2012-11-13 08:48:12
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1判断语句" g% K8 l0 \' g6 G5 i, j
if <condition> then' m# s _0 Y" R" p: o
<statement sequence1>;
& E: u9 z) S/ Z" S) A' p8 V; ` elseif <condition> then
. I( M- O4 T' f* I. M/ U5 }4 g9 e <statement sequence2>;
; b: x, F8 x& b7 m1 M$ B) R3 d: u else
3 J+ H# Z# v, {) t! d) Q) Y <statement sequence3>;
+ ?% P% ~) W8 t8 { end;$ B% d* r& b/ g
如果分支比较多，用：
: I- q; {0 i3 J% K' U6 o inspect <expression>8 o, s- h# U; \! w7 T" x" u: ?
when <constant_list> then5 @4 i6 }+ a0 P" B( Z
<statement sequence1>;
, L) t% Y( G2 [3 y when <constant_list> then
1 h; d) Y0 ^1 L/ c( o <statement sequence2>;
1 j- V! F6 m& r3 |- t0 F ...
4 C5 f ^: x( m9 L* [. R else
$ U1 {* `! ~* Z: v3 ?( e- Z <statement sequence3>;+ i/ E. S, m' x+ X; H! p# c+ p
end;3 D' G* O5 }; J0 [9 T
6 |7 }9 F4 X) ?+ @4 V: k# ~: f4 w7 q2循环语句5 K; ^" D; B4 J; j3 e
(1) from <statement sequence1>
) j3 x$ m/ E. m" x until <condition> loop$ {; g2 i6 g0 o+ E. t g/ i# j
<statement sequence2>;
$ M0 A5 C9 X1 x+ E! y8 C6 a end;$ p$ l' [) T$ k" b- l
(2) while <condition> loop
1 {/ Z$ [* e' q0 `# q <statement sequence1>;! H+ F2 E7 [! l8 s2 \
end;
j' N6 H+ w6 {8 b' J (3) repeat
9 h- R5 R5 q& P+ { <statement sequence1>;
; a, [" Z x' j* z+ V until <condition>;
6 K8 H" g/ \ W! ~ (4) for <condition> to <condition> loop w0 F% B, h% e) Q f( \8 c
<statement sequence1>;
# m; X" ^1 n- E) @9 K2 [ next;
2 T% [. Y' U9 ^8 V; ~( H* g3中断语句
9 g" l3 J: V' P& O) A& W waituntil <condition> prio <integer expression>;
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o4 }5 M/ j1 j8 k S& N; M8 o" t, b+ j+ f
以上为常用的函数！
8 t) F% \" ~7 p5 N+ @还有很多，如有需要我把资料发到你邮箱里
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