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发表于 2012-11-13 08:48:12
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1判断语句; L4 ? V: K, N8 X3 p Y; p0 ?
if <condition> then
, t5 v4 s2 l% [' w9 I/ X$ \/ x4 f# n <statement sequence1>;3 k) b9 ~5 U% d2 Q+ R
elseif <condition> then
: M: x& D' U% G3 y4 p0 e <statement sequence2>;3 l, B" |( p7 R5 F( i
else
( A: }( C9 U/ D. V <statement sequence3>;) q- ]. ?+ @6 t: A! @7 E
end;
; {0 H, ~1 U& r/ l) S1 j! `如果分支比较多，用：
( \7 i( c" x3 R inspect <expression>
. ]6 v: {; J# a) e1 h/ z1 @& h4 N when <constant_list> then# `$ r% i5 U. w5 |5 u
<statement sequence1>;
/ A$ x$ A" x! ~0 o# P1 n when <constant_list> then M [1 E2 Y3 v7 O
<statement sequence2>;% Q, Z, }8 e( H$ Z9 k
...+ N" t \5 `3 }7 L) g( Z$ f/ g
else$ g( \3 {7 [- f' Y! [3 S
<statement sequence3>;, K; t, }' `7 z5 X" {
end;
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2循环语句
0 @0 y: J; ?( z) s) e (1) from <statement sequence1>
" ^ r, O" l% v1 c. _ until <condition> loop9 G% X6 Z, @* z' x9 A3 Z
<statement sequence2>;/ b, m4 b- X h- k5 [
end;
1 C' Z Q/ |% ~' o$ s (2) while <condition> loop6 c2 D. C( y0 T4 @7 i- x4 Y
<statement sequence1>;3 x& V1 Y' a9 l9 z0 L, |
end;
3 H; k6 d3 }- M g (3) repeat 6 k' K+ @& ~2 n: _' j! F
<statement sequence1>;3 O: G' m- A6 g+ s
until <condition>;
3 |: p1 y# E% H5 i& C (4) for <condition> to <condition> loop! D+ U% K/ j8 I: W; S( s0 O
<statement sequence1>;
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3中断语句0 W" y q! t1 l, J
waituntil <condition> prio <integer expression>;
. ]0 v# z) l* I, g4 V: o
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" e1 K3 t! {' q+ J7 e以上为常用的函数！6 A& p6 R, d: ^( @7 T
还有很多，如有需要我把资料发到你邮箱里 % y* H' ^; k2 Z. o1 a/ L* b
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