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发表于 2012-11-13 08:48:12
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1判断语句) P& Z: }8 u3 ?% z1 W4 N8 v. c
if <condition> then) D6 x, Y$ |5 A( t e
<statement sequence1>;9 t, j \0 ^5 x2 T g
elseif <condition> then
* e0 g9 Y# s: P" J <statement sequence2>;8 i) x) b( c" g0 ~' |0 v3 f
else
2 }& }" |1 m# R( v* ?- L <statement sequence3>;
1 r* f7 ^4 q; ^( ~+ t end;
2 {$ O" ` r0 A& v# Z3 P2 e* L如果分支比较多，用：8 }# U+ W O8 _" M; |& v* \( c
inspect <expression>
: u% [' ~& {; Z% f7 x5 k when <constant_list> then
j5 Z% @! E: A) @! \ {, b <statement sequence1>;6 L9 W: w/ o3 a, z
when <constant_list> then& v, J( k9 l/ n9 u- ]
<statement sequence2>;
& b6 E1 q* k( h7 g A5 y2 |: X ...
9 }4 e% i6 J. {# k# F8 ]+ F" c else
9 u3 V9 s5 c4 W <statement sequence3>;9 r4 S) ?" s9 n3 @9 g
end;
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5 R4 c2 R. v& b# @% N2循环语句8 F4 |6 \ o+ Z9 j% B7 ?
(1) from <statement sequence1>- z2 ]" x6 h% N5 N6 K
until <condition> loop
0 K/ k" ^8 H% N3 i3 w& b9 q D <statement sequence2>;
7 V" I& K6 J& i7 f1 \ end;8 j# X; L5 t, U6 r3 W% F% r
(2) while <condition> loop& i# \5 z4 u% o
<statement sequence1>;, P0 N) ]5 [) T3 d
end;
% u: V4 Z/ T6 Z( h( o5 d3 } (3) repeat
$ H3 s9 Y2 g7 [ <statement sequence1>;
3 _6 E* Z3 G$ }$ H9 l @' C until <condition>;
; ?' c+ B5 S# J6 m% B (4) for <condition> to <condition> loop
5 @9 a. v1 E5 z4 B2 i% A% h* z <statement sequence1>;6 L% h6 J/ \2 C' b) F& T
next;; b4 O: w8 l, g) O5 X, _
3中断语句
1 z8 h( e$ b5 u/ y+ G! a waituntil <condition> prio <integer expression>;9 P1 L/ ]% c" \$ {+ _& J7 [
* Z8 H- S; z7 u) o4 S7 v* j6 H6 }- ], g( `7 j* p8 S0 f2 n
以上为常用的函数！
4 u8 C1 y2 o6 v! U# y还有很多，如有需要我把资料发到你邮箱里 : _- |$ X3 K4 K T
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