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发表于 2012-11-13 08:48:12
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1判断语句' F8 C* Y# I# c) @# h! y2 E
if <condition> then
! p8 |' D9 X g/ _3 ` <statement sequence1>;$ u9 }/ |0 X7 Y
elseif <condition> then, f( R# z% m; `$ _0 _
<statement sequence2>;. m* r4 c- E4 M6 Z! \
else : n, f: ^' t: O
<statement sequence3>;
+ n% c( c3 n. |5 c" b end;
/ v" z6 ~3 Z. I* Y9 r7 s如果分支比较多，用：8 y0 r/ S$ Q1 Z( }
inspect <expression>. [( l5 [0 ~0 v; Y6 R: C, x
when <constant_list> then+ L1 F- \" Q, Y
<statement sequence1>;: c' t9 A3 f6 y; A
when <constant_list> then" f% w9 }4 x* p( b' N
<statement sequence2>;
4 v9 l! p. }% ]3 j0 s+ t8 }% e ...
2 B4 V, n! f2 z) X* ~1 r else
" ^! E0 ^! S: n/ n; q1 N' Q <statement sequence3>;
& ] B' v# C+ i0 P' k) u. Nend;
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2循环语句. `+ a) Y/ e4 P- R1 ^
(1) from <statement sequence1>, O+ {, W) a# |) @
until <condition> loop
( r! R6 [& u5 L+ O0 L <statement sequence2>;) K- a z3 |% o! u0 z
end;1 ] C5 \7 |& d1 c
(2) while <condition> loop! K5 f; a Q8 V8 q8 g/ b2 e0 A6 G
<statement sequence1>;9 p/ H( }' F4 M2 r/ z
end;
$ e. ^ ] [4 \2 t (3) repeat / w! c% ~4 c6 p) V% V4 }- d
<statement sequence1>;. i& ~/ F2 O3 _$ z: V; w c( C
until <condition>;5 p- d ^) W- [* |' ~! i Q4 K0 K
(4) for <condition> to <condition> loop
7 k7 Z, c1 u$ E; A @8 z <statement sequence1>;
2 e/ w$ h+ Q2 U next;+ S$ X. B: m2 S6 x5 O0 f u, U8 ]
3中断语句
) b: G9 @! B7 }* L waituntil <condition> prio <integer expression>;2 n7 A3 \6 [! |: P
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以上为常用的函数！
8 Y; W" U3 f- b还有很多，如有需要我把资料发到你邮箱里 # r$ Q- M5 q2 q
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