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发表于 2012-11-13 08:48:12
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1判断语句
; |% J: O. V) k3 x% ~: v) i" | if <condition> then
7 i* G. X) \: G' ` <statement sequence1>;
: A* ]6 k; ~3 T9 \- N& l elseif <condition> then
7 |/ H$ f) d( A$ y E. O- K$ j <statement sequence2>;7 I& l* x% V6 P2 y6 B3 N) L
else
+ T! y7 i: ^0 ]! Y" P9 b3 Y! g <statement sequence3>;
! r) {% n/ N! d0 J4 j# k$ n end;" o8 a" _- ^5 i0 t. J
如果分支比较多，用：
& V# D: d- ?+ Z inspect <expression>
2 U5 {4 a2 I0 o4 d) u5 b when <constant_list> then
8 K8 e( ^2 ?& Q) ^' [ <statement sequence1>;; A( K7 U+ G5 a
when <constant_list> then( V1 Q _2 p; v d& Y" N @' }/ ?
<statement sequence2>;
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else ?) o; S) u W
<statement sequence3>;6 F0 X9 J" E5 G; M8 d3 p) L
end;
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2循环语句* Z3 F4 T% @: m
(1) from <statement sequence1>
2 ~, V3 ^6 s& y; T, w until <condition> loop! P8 \4 I- ?" c; U8 S8 X
<statement sequence2>;
! i4 U9 g8 k) A* H8 b6 Z; Z, X$ R' m! r end;* B* S! q# T, ?. G
(2) while <condition> loop
$ D$ C" J8 F) s5 w! M" L <statement sequence1>; V$ V5 x/ S8 X H0 V
end;2 |& ^# C: x8 z
(3) repeat ( {/ T) Z5 E X! I7 Y
<statement sequence1>;1 _1 Q A- u! T' x
until <condition>;, B7 R+ A. ^! _2 g( ]! T
(4) for <condition> to <condition> loop
8 U5 y+ b# v0 _* L0 S& W: O7 R <statement sequence1>;
, |1 o: t& q" z W next;
+ X! Q i0 k7 m9 j# B3中断语句
+ z, w- j( E2 I# o waituntil <condition> prio <integer expression>;; \8 R! S; D- e# G- K, f
4 R V2 `2 C, B0 C& i$ V, K; ?7 K- w0 s
6 s* z' M5 D4 r3 S
以上为常用的函数！3 J2 [3 U \9 A6 j0 N
还有很多，如有需要我把资料发到你邮箱里 1 f: d$ {) s! P
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