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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
p" Q# O0 x+ s if <condition> then. g8 M' v# U$ x+ [0 ^) j' K8 [9 i
<statement sequence1>;! H+ z9 g" Z0 E |, _$ @' ?
elseif <condition> then
' F" I a7 Q2 S# a9 T <statement sequence2>;9 q9 I6 I1 }( a. ]( q a! m1 y
else
9 U& G0 Q$ Y8 W# p9 v' q <statement sequence3>;
$ L& D3 d7 G$ M* D5 ^ end;
7 o4 n: X3 {& i' A c9 S+ g如果分支比较多，用：
: x% I- x3 A5 E inspect <expression>
4 ~8 I) n8 W* ]0 |& a' B! T0 q/ B+ C when <constant_list> then
/ i/ Q) ~- c7 ~. V8 { <statement sequence1>;
. v1 y2 J% @! ]: n" D7 `2 b when <constant_list> then9 I2 r; E4 b: f; o
<statement sequence2>;2 t8 y7 O' k% j0 A% c
...5 I' Y4 x$ y( Q
else
3 b3 m2 j8 A0 _, N0 i$ F/ g: |8 I, A$ m <statement sequence3>;
" Y. V; ]2 x7 I" N& Bend;
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2循环语句
2 G# p1 s7 j$ E E (1) from <statement sequence1>! M0 l# |+ s( i7 E2 l% u$ D9 a% U
until <condition> loop
) `. {/ H: x% }1 \! Z' J* C$ {' w0 o) g <statement sequence2>;. U. ^! z! H6 V1 w
end;
+ \& o Y2 r' d; m5 m. @2 W5 W$ n$ U (2) while <condition> loop
# z) ?8 Y$ S& R <statement sequence1>;
( D% u2 M0 j/ q) q5 B5 B/ P end;
4 X2 g z) |! a% r6 m) p4 O (3) repeat 4 V' A, W( s# [$ r7 B
<statement sequence1>;, N8 n/ t0 K( G% ?! L9 Q* [* Y
until <condition>;- Q" {% u7 N, x3 k" p+ ]2 Y
(4) for <condition> to <condition> loop! l; d! z- v4 J. q' g6 q
<statement sequence1>;
/ `, i/ H- y5 x; F1 M, S" X next; z' J) d* D- f# d8 W2 ?
3中断语句3 k: G' i: q+ l# ?+ z; g1 `% x
waituntil <condition> prio <integer expression>;0 j" T/ m; X/ R4 h0 g1 ?/ \
9 F, p% Y- h4 u7 V! K
* s' B0 E4 I! E" a. j I以上为常用的函数！ ^1 J' R0 \4 F2 Q/ J7 T2 k
还有很多，如有需要我把资料发到你邮箱里
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