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发表于 2012-11-13 08:48:12
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1判断语句
' j$ m5 }) ^1 H6 R, a% ^" F if <condition> then+ K( v, |; J, G$ w3 T; P
<statement sequence1>;
7 a* x T& M, m elseif <condition> then0 W9 ^3 }& Z0 l! n4 T+ ~8 X
<statement sequence2>;( s: z G- x5 B# R. B' O% F
else
# G! P- z, e) f! Q' `: g- ^ <statement sequence3>;! U# ]2 T* m! Q9 O/ k& v, w {9 w
end;0 a. I, e! E' n5 I! c8 X% W! V
如果分支比较多，用：
9 f' {) }4 H' m2 R inspect <expression>7 r8 M7 G* P% O' P
when <constant_list> then2 G# k* W7 }! _+ P: k4 X
<statement sequence1>;
& @, p" w4 W ^! y8 G when <constant_list> then
# E- o/ s' j4 I) m9 m7 v/ ~ <statement sequence2>;
6 O) A, F J+ {" W* [( v ...
! \1 K5 \4 e% f- g else
: Y- J) z9 ]6 j <statement sequence3>;& G9 ]: e, t$ i3 r3 _- Z# i( h
end;
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2循环语句0 D! q8 `, E6 ~7 v$ r
(1) from <statement sequence1>
$ D7 F Y( G: g until <condition> loop+ F# [$ o o% @* Q3 `5 S! ~' }
<statement sequence2>;
, t( P5 {6 B- s5 j6 T end;
0 H& A7 l _5 }5 G (2) while <condition> loop
* a: z+ C# S0 n: ] <statement sequence1>;$ N# c7 F' k% R9 U6 f! p, h8 X
end;1 [! w% k# W, T* b5 Y6 y0 |
(3) repeat
b7 s3 q) F3 M K1 i# ]9 l- Q <statement sequence1>;
X: J* b# D t0 V; ~' q until <condition>;5 V+ j, L3 @2 O4 j& o
(4) for <condition> to <condition> loop
4 @$ P7 G, e: t- @0 [1 g& y <statement sequence1>;5 i' q- W/ r& @4 Q4 A7 B3 L0 f
next;
" ?- m; [8 q F; y, z2 j3中断语句9 Y% R( y0 P1 w7 {- T
waituntil <condition> prio <integer expression>;
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' C# ^% A8 |0 D以上为常用的函数！; u3 S, R: _6 a, O
还有很多，如有需要我把资料发到你邮箱里
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