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发表于 2012-11-13 08:48:12
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1判断语句, w- y! P% G) y @, A
if <condition> then
. G4 j' l- t4 x2 S/ `3 _7 m( E <statement sequence1>;. T9 N' ^! w8 m" z( y5 ?& w
elseif <condition> then
, a: }) a1 Z9 H f- i0 _ <statement sequence2>;
, U7 |( H+ b9 q& X else
8 O" U# q6 `, a8 s+ P* y <statement sequence3>;
( _/ v* M7 O7 X6 R end; q8 [" y/ M! J7 p
如果分支比较多，用：
" I9 Q0 ~# g$ y; [1 K9 p inspect <expression> c$ q% S7 d0 y. c, A, q
when <constant_list> then+ u5 q; T6 F+ t: \) d# k# X' j
<statement sequence1>;8 G& b; N, t0 B
when <constant_list> then
2 ]6 l" M9 n6 c- | <statement sequence2>;
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else
( @+ `; X* K" E8 o; o! O# L3 I <statement sequence3>;
) m# [5 I. v# Y7 U, t( @) |end;
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2循环语句
1 o2 m% C0 Q9 B% \1 h (1) from <statement sequence1>
P8 }" K* Y9 E' f& t until <condition> loop
9 d$ e) d8 n' @& q/ l <statement sequence2>;0 Z+ q& j y7 m) D, w# S
end;
9 N% m* ~/ Q* X3 m) d7 n (2) while <condition> loop2 W* t3 u/ j0 m
<statement sequence1>;( h7 c: ], c+ k) a5 G9 H
end;
. j0 `8 Z3 s& V$ K+ v (3) repeat & _ c1 i6 L4 @
<statement sequence1>;( d+ o0 r9 H) p1 Z
until <condition>;/ z( X4 V5 U+ u: j0 F8 g3 n0 A% G
(4) for <condition> to <condition> loop
' R9 T$ k* i4 k) m) P! @0 y( r <statement sequence1>;/ D* y7 v, K* r# G
next;
# ~5 y: a/ j4 Y' u3中断语句
2 N" G6 u4 ^0 B! F* D waituntil <condition> prio <integer expression>;
' \2 d! v0 Q) o+ g' q. r* x4 l, z, c% z7 l+ o& \5 N8 }
5 K6 @6 v" \; U' V$ a( u
以上为常用的函数！
& [; g: Z; y0 q还有很多，如有需要我把资料发到你邮箱里
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