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发表于 2012-11-13 08:48:12
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1判断语句( Q- n d1 Y+ w! U+ V+ {; ^
if <condition> then
{0 P2 {. F$ P# m4 k1 q! z" q. d, K <statement sequence1>;
& G/ w8 k( f8 O! ^9 r* [ x/ B elseif <condition> then
" i T5 ?& l3 v. z/ Y <statement sequence2>;" p& m/ j" ^9 s% C& l
else ! ~- t8 [5 z: h \' E& C
<statement sequence3>;9 l' U# N4 N* v. F$ f
end;4 g" n7 t. K I4 x# ?
如果分支比较多，用：
0 h. x/ b! ~/ M3 s$ { inspect <expression>
0 F" R8 x( A0 c0 z5 t2 V! g6 \ when <constant_list> then3 e- B7 I5 F$ \3 [9 a
<statement sequence1>;
2 z& d+ e9 }; F& X0 G T1 l when <constant_list> then7 \% Q* P, }; V
<statement sequence2>;
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else2 l9 x. p& }; h2 W
<statement sequence3>;1 M9 X( o; t/ }8 l) O5 w2 B
end;
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2循环语句
6 y; h. f( p; F (1) from <statement sequence1>
Y" b2 {' e: _0 N* \) W until <condition> loop7 V; k c T; f
<statement sequence2>;0 F1 T( y: Z3 |5 v9 P( y' l! E
end;
$ R9 C5 j( l1 l (2) while <condition> loop
7 m+ {9 d2 P1 g <statement sequence1>;1 @2 e" b) |$ ~* m6 q" _+ |( P
end;0 R1 W$ x* F6 g% L, p: n" Q
(3) repeat
; n# J6 h$ @, W8 b3 T <statement sequence1>;7 g, p3 n5 d) h( u
until <condition>;' ]) s4 ^: f1 ~$ M( f& o1 P
(4) for <condition> to <condition> loop! e; b, v; }6 i) b& ^+ D7 `0 L- E5 w Q
<statement sequence1>;
# p! T' U$ M/ L2 K next;
0 p2 d3 O0 m, B: u( S3中断语句: |; r% ]5 k3 B1 @
waituntil <condition> prio <integer expression>;9 H% ^) t+ c2 a! \1 z8 j3 o
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以上为常用的函数！7 S3 s. ~$ a2 V; u B
还有很多，如有需要我把资料发到你邮箱里
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