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发表于 2012-11-13 08:48:12
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1判断语句
! p5 \0 _7 V% _! a3 G6 W if <condition> then. R' e" g+ A0 L% H5 G
<statement sequence1>;! o& D: C5 s! o0 C2 B+ N6 U
elseif <condition> then# V0 c$ F! C/ G0 z
<statement sequence2>;! ^+ @3 ?) A+ {& v$ X8 V4 `
else ) G; f& N) [0 F: g1 A6 y2 a
<statement sequence3>;
. |, F* ~4 w0 ]: F# O$ D end;
2 A% l3 o# N S# I/ u+ w) |/ q如果分支比较多，用：
, x7 m6 d5 z% \' C" f3 e inspect <expression>
8 M+ J7 D8 c, @- V7 z5 R* b when <constant_list> then
8 \$ y" y8 H/ @8 R6 n. e* g# R <statement sequence1>;
* q" }. j1 R# n$ p! Q, T when <constant_list> then
5 E3 P# y" c* S: s0 [ <statement sequence2>;0 t! y+ z# c& Z5 o/ z
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else
5 b/ `5 u% n1 m7 Q5 q; b8 o' w+ V <statement sequence3>;% Z3 o S4 e- d$ D6 \
end;
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(1) from <statement sequence1>
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<statement sequence2>;
& O' m& T9 x) j$ X end;
( |/ K6 ~0 ?4 S' o6 [ (2) while <condition> loop6 c' |# B: L( f8 X. ]
<statement sequence1>;, r: i J( G9 b- C2 j
end;! G R% Z: o2 T: c
(3) repeat
7 M, f) l2 M9 I8 m9 O$ e) @ <statement sequence1>;( ~2 q# ]( b' B# N1 N3 o" E$ R& w4 R
until <condition>;
3 y x w3 Q& g& W9 r6 h (4) for <condition> to <condition> loop$ J& z- F1 F( w4 }" ^: d0 a
<statement sequence1>;
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3中断语句
. {" F& V$ `( `0 K/ w5 N waituntil <condition> prio <integer expression>;
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以上为常用的函数！' X+ a7 {' b, J) A" @: L
还有很多，如有需要我把资料发到你邮箱里
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