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发表于 2012-11-13 08:48:12
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1判断语句
) |6 i' r1 d7 B3 U if <condition> then6 o: f2 A9 S7 u# N# E9 ~5 k. v
<statement sequence1>;0 Z; T) K, h1 C/ Y# ^
elseif <condition> then6 H, s# y- X- p2 B! t5 \1 ?
<statement sequence2>;. _( ]7 v& V1 Q0 t
else
* P2 w( u- W" M; e, } <statement sequence3>;
& D; D! W' t* }# n/ _/ a7 {* @ end;. R7 m7 Q- A& [ x# w/ A
如果分支比较多，用：
" M( ~* T1 |9 U$ N. ? inspect <expression>
: Q% L, t2 [3 I) O5 K: m; a when <constant_list> then3 H7 U8 T0 L# D0 b2 Q* {: Z$ f
<statement sequence1>;
, I0 N" u3 U9 l when <constant_list> then$ h; x+ |/ v; v2 C T' |/ ]- }
<statement sequence2>;% `2 h s' C9 ]9 I/ x# K) D6 x0 X
...
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<statement sequence3>;
/ ?0 B+ Q% S2 m0 Z" z; Dend;
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5 X5 I# k1 n" }" @; X2循环语句$ X: w: H5 D E) N. K* L8 y
(1) from <statement sequence1>7 R P2 q8 Q3 J- G
until <condition> loop" n6 J, P" r; C0 W
<statement sequence2>;
( E0 S# w- K6 s# ~# S end; ]4 n& C( l7 N; k
(2) while <condition> loop
9 G# a8 F4 v; ?1 L, u6 T <statement sequence1>;: V# B% X% O4 O0 }
end;* G! c5 L) m( O8 O* z
(3) repeat
$ B5 X( R- y0 `4 L. H <statement sequence1>;
' z! y3 w" D& I until <condition>;
, \( P6 g5 e6 D" X& C2 Y8 D (4) for <condition> to <condition> loop5 p5 x ~" `9 F; L4 J7 b
<statement sequence1>;; b7 n9 j. d/ Q1 T' y- L/ P: @
next;
0 ^8 e2 E! t) Y& y3中断语句
7 z- n* a6 D% U9 ]/ f2 s# k waituntil <condition> prio <integer expression>;
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以上为常用的函数！
3 p! o& s7 j( T( Y# S还有很多，如有需要我把资料发到你邮箱里
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