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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
5 F# f! X+ c$ o5 c+ ^' k. } if <condition> then% ?0 j7 j6 ]5 m' w f
<statement sequence1>;
' c$ h! w$ {- o+ [ elseif <condition> then9 Q7 F2 [! j% O0 s5 n- D n o
<statement sequence2>;
" A$ U3 F& d2 s |/ b else
& K4 u" u' o8 E7 n/ c, N# m$ u <statement sequence3>;
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如果分支比较多，用：) M: {- G) C0 G# b2 w+ x. v6 {
inspect <expression>2 @4 b) v7 r1 Y) S( R: z
when <constant_list> then9 Q, Z2 e) A) R* l0 y) n _( ^/ q+ y
<statement sequence1>;
* c7 G) A n+ W/ K6 e& S9 Z" g& { when <constant_list> then" O8 {9 n: G. ?, v/ }
<statement sequence2>; p% b: n" B: A7 e! ~3 d' j$ a% a
...4 [4 f& k' R2 k# O5 ~3 n" I
else
* }3 v; P4 o# o <statement sequence3>;3 \" E- Z2 v: T9 }7 v0 R+ p8 z
end;1 g8 K4 _2 V3 U8 W. R# d
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2循环语句 p: h) q' l7 n2 T& l; N& R6 [0 t$ b
(1) from <statement sequence1>! H4 s. Z3 L3 C) M7 M1 b2 ~5 S
until <condition> loop
3 r2 J. `/ G7 p- Z& k <statement sequence2>;
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(2) while <condition> loop" N% U( P L. q t' K5 I2 r
<statement sequence1>;
0 P, P" F7 `8 G% ?' I q end;: H" R. k' s( t& G: {
(3) repeat
/ u9 Z, u$ _' G9 i2 ] <statement sequence1>;
$ B) E* a" k- T: [ until <condition>;
/ a; y7 U+ ^/ H/ b T/ z- s (4) for <condition> to <condition> loop
0 p/ I5 g0 B2 ?; c/ u <statement sequence1>;
$ a9 `# T3 b( z* a5 f: S next;1 d% W' b, q% n7 l, M
3中断语句
# U/ K5 w& V3 j) @ waituntil <condition> prio <integer expression>;7 E8 z, [6 _3 y6 Y% X+ D
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& C- F- T4 J! ^3 B, L y; b以上为常用的函数！' p- R2 h& U+ s6 v: r F5 c* u; O
还有很多，如有需要我把资料发到你邮箱里 2 U: j: c6 D" a! c
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