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发表于 2012-11-13 08:48:12
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1判断语句& u4 r# A. y, U
if <condition> then+ @# ]" I0 `+ m- J' Q3 b' }9 E
<statement sequence1>;
C" X. T& v' l9 f2 G elseif <condition> then y' e) o/ p0 b P. G* p' C
<statement sequence2>;
$ k- V, C6 C1 m else
1 H# U; |% L4 o1 P) o' b% K <statement sequence3>;
4 y/ T( N+ K8 E7 r! y end;7 [4 q3 b1 h9 ~* \( _( }8 R" _
如果分支比较多，用：) s6 `5 g1 @) d: A9 X0 W
inspect <expression>
) O: l4 D. N7 v when <constant_list> then e$ O( _/ Q3 y d% r- R
<statement sequence1>;
: D/ P# r# a! V2 k5 t when <constant_list> then$ B: @: O1 q- O# B, q
<statement sequence2>;* ]# v. L7 `7 a
...2 y/ g: _+ d1 O
else
3 G+ H7 y' q$ { <statement sequence3>;
/ c# }3 c3 E6 S, ^" Oend;: O: g( R( }* J
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2循环语句" {" d. p8 S/ D6 ~% C
(1) from <statement sequence1>; `0 r7 K& b; g$ e1 S C) o/ v
until <condition> loop
" Y' u( s2 P( V9 ]3 a <statement sequence2>;: E" j. P& Q" U U
end;& r8 @& ^9 m% }
(2) while <condition> loop$ Z5 J! c# B w6 R) I$ i8 v# E* c/ K/ V
<statement sequence1>;
' x: S# \# |4 V w end;
' i1 b3 t1 N8 ~$ _* V. t (3) repeat
+ P8 ?$ r/ a6 o2 O$ A4 ~. c# r <statement sequence1>;
4 n' q: h# b6 @8 ?% I o$ q until <condition>;& @3 a" b6 F$ Q& ?) N- q
(4) for <condition> to <condition> loop
2 i0 \# S; n$ J' i' y* x5 M$ K0 R* j5 s <statement sequence1>;
n; ^2 h+ k# d next;
0 C, q; H: g8 N1 y% A# a3 H' c3中断语句
! m1 b3 g9 k7 u& z waituntil <condition> prio <integer expression>;
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以上为常用的函数！
: ]# }' V' c) b- J! K9 h9 k0 R2 \& f还有很多，如有需要我把资料发到你邮箱里 & n9 @! e* q: x
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