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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
" Y/ k7 P% a' y% C if <condition> then$ Y2 R0 p/ B2 x7 r' C6 I2 r3 I2 p
<statement sequence1>;/ F, ?5 x3 l) R q# Q! j* c+ r
elseif <condition> then
7 }" G8 w" s# D8 ]$ v! W <statement sequence2>;
! g4 i" Q+ B2 H& O: m0 o) v else 9 l8 @2 m5 g, u1 q) l
<statement sequence3>;
' p: _. S) M; j4 u+ d9 W+ |' ?* | end;
# b0 j+ ]* J2 f! J* E+ z" w如果分支比较多，用：
4 M6 j4 A# T! G7 k inspect <expression>
/ U; H* O, F5 v1 B: C6 A' P5 T% i when <constant_list> then
- p t9 z% @" v" q <statement sequence1>;
1 e8 Y) E4 \, @0 l when <constant_list> then' F' Y7 C+ o" o
<statement sequence2>;7 F/ d/ N- R2 O
...
3 w. M1 T# u" S4 X" L else: P' D! Z: _) z6 j
<statement sequence3>;# Y" _4 y( ~9 [4 a) b
end;
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5 Z& ^) ^9 t7 M1 v c/ u9 G2循环语句
# Q5 T9 S3 @: x" \* r (1) from <statement sequence1>% C9 F8 X( d8 {
until <condition> loop- H; @ z% R6 B6 w$ C+ B
<statement sequence2>;. v$ ^ b1 O. X7 Q1 d5 a
end;6 p2 k5 z. _! R
(2) while <condition> loop9 ]& a+ k W1 s7 }$ X
<statement sequence1>;( e% @( k' d9 W3 P" G
end;
% N/ K4 y0 K) t! ?+ m* |6 T& h (3) repeat
3 c7 z8 Y* X- U6 ^2 N! v2 S# D' h% q1 X <statement sequence1>;
. o% [+ \; q4 N$ `# e+ s until <condition>;
# |! S4 x+ S& o: b3 q m! G (4) for <condition> to <condition> loop. x3 U; R. R8 w% |. z
<statement sequence1>;
5 o& J4 c& F' W1 S6 V next;# p4 I8 z8 g! }
3中断语句
( C( V- p/ z; q9 c1 Q waituntil <condition> prio <integer expression>;/ F! J3 Y7 N# o5 y- ^+ v* X! H
% F% ^& d' c% V1 x' D$ }* |4 p
$ }& h x' c' c4 A以上为常用的函数！
4 V. r+ \& T3 {3 z还有很多，如有需要我把资料发到你邮箱里 : Y! C. Z' ]8 O5 G, ^. c6 t
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