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发表于 2012-11-13 08:48:12
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1判断语句
9 P" H) Q3 k$ I. L! e0 K+ z; ^" f if <condition> then- a( \ X( B' w8 h; x0 I
<statement sequence1>;$ ~7 s+ G" L) k8 o% }7 g. e
elseif <condition> then- Y$ R0 g6 O" o0 ~
<statement sequence2>;
* |+ k% Y: ], D else
; a6 [7 O) |" z# r% A x3 e e <statement sequence3>;
8 m. J9 }3 M, ~( K end;, Q, A( \3 I; m6 x3 ^. N6 ^
如果分支比较多，用：
# m7 O4 t+ N1 p/ W3 d4 b: w inspect <expression>
C3 T. a) O' E3 o when <constant_list> then
! v2 h0 g# K; k) h <statement sequence1>;5 ~% H" i6 n. j; g7 c7 a
when <constant_list> then
: G- R8 Z/ D2 R- u4 b <statement sequence2>;
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else
; d+ C3 [% u& _% h8 d }# n <statement sequence3>;
/ U# W: |' c' o( e) _8 ^! pend;
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2循环语句9 z- X0 Y- U: [7 a# p8 k" q
(1) from <statement sequence1>1 Q9 U. {8 x2 f, n( g9 n
until <condition> loop
1 v$ c* w7 }! V: s! D4 o <statement sequence2>;# g1 N" Y7 w# A4 o: K& c
end;
+ |0 T8 G+ ]7 p (2) while <condition> loop& m8 L8 i$ T* [5 L& d
<statement sequence1>;# m, N: M4 t/ E n
end;
" b" z& O# S# l! ?9 ` (3) repeat
: c6 Z; d! C/ h: w& ?( ]+ G <statement sequence1>;
, t- N) a0 p+ |/ v" z8 m until <condition>;$ N u8 K7 H9 ^. J4 r0 C
(4) for <condition> to <condition> loop
5 k" c/ ]$ Y: g/ `3 K' K <statement sequence1>;
$ I& R0 z; I7 F3 L! F3 k" \# g next;
7 c0 b/ n7 ~/ M! Y1 [4 e3中断语句# G" `( N# \3 |+ J( C
waituntil <condition> prio <integer expression>;- c& s. L- W) A. o
* e- p7 g; a$ h
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以上为常用的函数！
! ~' ?1 R E; I% m3 M还有很多，如有需要我把资料发到你邮箱里 * f2 q# }& ~( j- N+ ?8 ], R( y
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