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发表于 2012-11-13 08:48:12
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1判断语句
2 v* [6 `" W n7 B- w if <condition> then1 Q- T1 n: L9 v3 A9 ^
<statement sequence1>;8 P; i& p/ H7 ~" Z: y7 @
elseif <condition> then4 D- @4 S, ^) X, `8 A- B
<statement sequence2>;
7 ]" _0 W1 U5 w else
1 q/ k4 h+ R9 G% r( o4 e+ W <statement sequence3>;
8 }0 b3 p+ z+ v! |& R end;1 |6 h; q3 m5 j' c2 r- l% l5 t8 R
如果分支比较多，用：
" V- d; g* c0 [. {& k% N9 h inspect <expression>% p: B8 h& G$ ~3 L% e
when <constant_list> then
: _9 V/ f& R m+ @ {4 _ <statement sequence1>;+ H2 X" M, N6 a6 I4 c7 |# U
when <constant_list> then7 F1 s; G6 K% ^7 t+ e& ]
<statement sequence2>;
: Y, \3 g6 I1 _' G& p% U5 B" H ...
$ ^, U" p0 R' J else5 h: Y" h/ ~1 }+ r/ |8 j
<statement sequence3>;$ q+ B4 w& W0 J% q+ ?. x
end;2 J# k! @$ z6 ?4 {9 x0 |9 `. o
9 h- X2 A+ `% n2 U' i2循环语句
5 O0 b8 i$ d2 ]" W7 I6 O (1) from <statement sequence1>, Z( Q& W0 g. C3 S( I) N4 G. \/ L
until <condition> loop/ e, l+ u, g6 }( [- |5 O8 R; c
<statement sequence2>;% E1 q% o6 n$ t
end;
) D: t! d6 s, \! C- K2 D (2) while <condition> loop
; ^; _% D$ n( v8 P$ H <statement sequence1>;: ~+ p. @7 a! d9 U' y& ?( g( ]
end;% B1 x" W) ?! B4 J% J" Y
(3) repeat
% f+ q" d- n/ m( L9 W <statement sequence1>;
4 X9 P: R# K" Q% ] until <condition>;
8 x9 C. u) y) t) p (4) for <condition> to <condition> loop$ Q4 Y" f3 E( r# ^9 x6 u
<statement sequence1>;( _1 p5 U+ C" J) F4 s: x
next;8 r0 u5 k/ Y) l
3中断语句
' K* n7 }9 r: G% t waituntil <condition> prio <integer expression>;
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以上为常用的函数！% i8 E8 \" ~7 R) w9 U4 U' A
还有很多，如有需要我把资料发到你邮箱里 ( W& T9 ~0 z1 x5 k2 i4 f8 F; o: _
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