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发表于 2012-11-13 08:48:12
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1判断语句
9 I/ `0 z' R, Y8 F if <condition> then
/ S4 f ]8 ]7 f% }( Q' E8 A <statement sequence1>;
8 ?* v0 U, u4 i- }' M& w elseif <condition> then9 q4 i% D i3 ~1 E7 f% t
<statement sequence2>;# V8 D; v! w y4 ?% _! ~
else
?" Y: _/ P: M( V7 N+ {! U8 S <statement sequence3>;8 t9 o# S8 \) Z' f
end;
2 P; v0 c1 W; u {' f* I( t7 N3 |如果分支比较多，用：
% M @" S9 V9 b! Z: @( w inspect <expression>% u0 R% U3 I. O4 { c5 j2 h0 B
when <constant_list> then
# Q E8 e; L: { <statement sequence1>;
5 ]* K- o! @- c when <constant_list> then; F! X, b7 I! d" I, v0 C) T
<statement sequence2>;
+ O* {1 @( m8 O1 z ...
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<statement sequence3>;7 M2 G1 J/ p8 z/ i
end;
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c) d$ C, ~$ J2 d2循环语句7 w! {6 H. F9 o4 w6 e4 r4 o
(1) from <statement sequence1>* [. f' H5 E$ n8 ?
until <condition> loop
4 Z( u8 a% p8 l1 S+ f {6 y <statement sequence2>;0 i4 K; t. o1 a( R/ s' E
end;9 U, j. }% ~& m
(2) while <condition> loop
* J; h3 s" c, @) w/ x) I <statement sequence1>;( a @/ i2 w8 o6 m. V
end;
. R5 D) ^) u0 ?0 _& ]& i _4 k (3) repeat
. L! J# A3 U. |# o; `1 X( e+ X <statement sequence1>;) r( I* h0 v9 \& N4 @6 S
until <condition>;
$ u! j2 r7 t9 ~, }, T (4) for <condition> to <condition> loop4 \# Y* W' l) x4 k1 D/ E2 d
<statement sequence1>;! K0 U) U0 ]# \8 ?# `+ p9 M
next;
8 V. B% F8 g _5 t3中断语句
1 y; i8 B2 K, E( M waituntil <condition> prio <integer expression>;, c9 ]( _0 _! |1 e4 f, }' `+ s/ Y1 \; v
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. }5 X( ]0 ~: R9 B5 ?! }
以上为常用的函数！' A5 A0 F0 S9 d/ X( M# ]
还有很多，如有需要我把资料发到你邮箱里 ( u" m( d/ ~9 m1 ?6 Q z }
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