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发表于 2012-11-13 08:48:12
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1判断语句
2 J& W# i+ ~% e& c+ P7 h if <condition> then3 d/ ]' X2 ^2 ?$ }& Z9 n0 v! |
<statement sequence1>;5 a( S# [# i% K& ~, [3 O
elseif <condition> then
]5 r2 B: g/ p4 H6 q) n8 D <statement sequence2>;
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<statement sequence3>;$ H! f& I$ z7 Y+ x+ X/ J5 N
end;
* c4 c) R0 {" B: \如果分支比较多，用：
; q7 f2 t+ _2 i) x3 J5 m# L0 z inspect <expression>, [8 s9 E6 }5 U
when <constant_list> then
, _' q6 N$ P3 Y3 V <statement sequence1>;
' `/ U* V! P8 }, M8 y' F7 m when <constant_list> then& ^) |& a2 B: n7 X
<statement sequence2>;0 ]: a4 q& a' {$ _: R! G
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else
2 E0 [( s/ b4 m3 f1 K. ` <statement sequence3>;4 D. d4 _4 J. f: h
end;
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(1) from <statement sequence1>
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<statement sequence2>;( \, ], H" i4 I5 l5 e$ V* Z
end;' d# S7 A$ w+ B# M
(2) while <condition> loop
$ {9 T, ]( l5 W) ~ <statement sequence1>;% x7 d/ U1 }4 f3 d* W3 O
end;
x7 N6 ^1 X3 x/ U5 t (3) repeat + o) S' O, G5 @
<statement sequence1>;
2 `! t9 W/ C3 i0 d; C n7 u# j until <condition>;; b9 W, t) Q9 m! g
(4) for <condition> to <condition> loop, [% m+ V2 u0 P' E; R* Q
<statement sequence1>;
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3中断语句/ i a+ ^* m( V. v# L( O2 Q% O
waituntil <condition> prio <integer expression>;5 n. s# H0 [1 ?
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8 U$ X+ H- a2 f& e$ P1 \* u以上为常用的函数！6 ~) S) [8 s* T' I
还有很多，如有需要我把资料发到你邮箱里 . g8 j# z) M4 k, @1 c# l
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