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发表于 2012-11-13 08:48:12
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1判断语句
. H5 S2 \: V3 \% d, Q3 L6 A if <condition> then
) O1 i+ j$ F) n- _3 Z8 g; s <statement sequence1>;
6 z6 P. c2 N3 I: z1 L8 W3 `8 J+ z elseif <condition> then( |$ n& _7 O! F# o1 B% x: P
<statement sequence2>;
1 Q0 D( ~# w2 w! _8 V6 S g( r! c else ! F3 @3 O* V5 e1 K" b/ c/ }
<statement sequence3>;
/ F5 j; { n" {" `! b1 ~9 W end;
! ~! A" v/ S. P$ b; }" n6 x如果分支比较多，用：
# J) m% l# j3 F' m' t0 E0 D& J! Z inspect <expression>
$ ]- `# O& J! C% g3 o when <constant_list> then3 W2 _ F2 I) n0 T+ N
<statement sequence1>;) u2 k ]# _+ S, Q6 u: R, l
when <constant_list> then1 I& ~) l9 R( h" o( H% t
<statement sequence2>;% I( J2 T `# K
...
1 `! B2 Z, h) u# c& y; i else
; b$ r( v/ @; J+ H F0 E ], ` <statement sequence3>;
0 n$ K/ U7 B5 {4 m+ V3 W! \end;8 F5 c9 z9 f& G! d
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2循环语句' y- [8 i0 ^- y- N
(1) from <statement sequence1>
9 F/ k; T2 V0 s! _0 J until <condition> loop. W' t. v( m. m8 I) c5 q0 i
<statement sequence2>;
1 u: J# S# T% C) ` end;% L6 i% z. e% g8 q& E
(2) while <condition> loop* i8 Z- H. v, ?
<statement sequence1>;: R; o) e# P' @+ S8 {3 _
end; v# G0 D5 G# w( P4 l
(3) repeat * M5 D/ c8 U2 n
<statement sequence1>;0 N( B5 \8 [7 T. U
until <condition>;/ D& ?. y; u3 |8 U, g9 }
(4) for <condition> to <condition> loop
- ^5 P3 J7 G0 b& M) n <statement sequence1>;
/ F$ K1 u0 t% m: x, A) ^3 U next;
$ R3 [& }: I2 y3 E& q/ Y3中断语句" Y$ \+ U1 t: d6 |* j
waituntil <condition> prio <integer expression>;( x$ F# X+ n6 u& b
6 n& c8 V* k& @' I0 e! \7 S
8 Z& Z' E" U1 W& T以上为常用的函数！
1 w& }. T- Q1 G- j- w" A3 b还有很多，如有需要我把资料发到你邮箱里 ) ~' G/ `! ~: Q* \4 z
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