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发表于 2012-11-13 08:48:12
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1判断语句 q5 q) t9 [, S `/ n5 S. [& v
if <condition> then3 p- n9 o. I' _' P6 A' C/ {7 A
<statement sequence1>;, p6 `" T7 r0 @7 S
elseif <condition> then+ x% t, J% C& q. f2 s) R
<statement sequence2>;
) c/ t5 X5 W1 n& ~. J else
: X4 {8 D- v# a" |; I" } <statement sequence3>;
0 M1 D" \, k# D. `# D0 Q end;
n( S# s. @/ k8 y: j$ d如果分支比较多，用：
* j7 C, o0 N6 X! s4 n$ l/ T- N inspect <expression>
5 L; U! R |0 A when <constant_list> then
, C$ ], M1 z8 n- Q4 U/ j: h9 v o <statement sequence1>;
( x+ B6 c$ ^: z8 o( b4 q when <constant_list> then+ w% @( c+ S4 R# s- w
<statement sequence2>;
~/ B4 E! f2 f$ I G3 ]& y* ?0 S ...
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<statement sequence3>;5 J' e8 i; `8 u8 }6 S1 k7 n
end;
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2循环语句3 [9 Q5 y& c" g/ [& ?& [' J
(1) from <statement sequence1>6 k7 A& m4 j; o3 v0 q3 \/ v
until <condition> loop
. A7 w8 I& h0 m0 `. `5 W+ x @ <statement sequence2>;9 i4 c, W7 T& H! {& @/ }: i
end;
) B9 Y- M4 `% Z$ V, G" b (2) while <condition> loop
, ^2 J; F1 D2 L5 o a" Q6 E <statement sequence1>;3 O" m+ M) {3 A. T. c: Q
end;- ^% ^. a: Z& Z, z
(3) repeat
) t! i# r9 Y3 {6 K$ b <statement sequence1>;2 U q- o+ P/ t- E
until <condition>;
1 s/ e; S0 Z7 U, C (4) for <condition> to <condition> loop2 l* [! g. i8 D1 R7 y
<statement sequence1>;! [8 ]: J8 G: m" U: m2 j" }
next;
5 _# c4 P% @, V# F2 c" Z0 p8 m# j3中断语句
# o! c4 I+ ]. {# n: e0 b waituntil <condition> prio <integer expression>;
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以上为常用的函数！) z/ A5 ^" V# G
还有很多，如有需要我把资料发到你邮箱里 & [- e( k5 O0 j" A5 `& r( k z1 H
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