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发表于 2012-11-13 08:48:12
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1判断语句
" J6 h1 i* K5 x$ ?' F7 j if <condition> then
, L+ a% X, I- r- v J, Y% e/ x- O <statement sequence1>;
, ^$ Q; X+ e8 J; U3 u2 [' {. L elseif <condition> then: {3 W# L7 E4 a6 `7 }) C
<statement sequence2>;; _5 J+ W0 l, ~0 ^
else - X4 b/ v% l; |8 @
<statement sequence3>;! S; Y- s7 m( F& b% x
end;
9 ~* Q s3 b. m9 v+ x( T7 Y8 K如果分支比较多，用：
/ [( c% K8 Z+ J, Z0 W9 s* Z inspect <expression>5 f* C8 N8 D5 X1 j7 H
when <constant_list> then4 v" R, J+ o! W+ h6 j( W0 v
<statement sequence1>;
, w7 k! A/ n, y6 f7 B" a when <constant_list> then
0 F% P( E( g1 i& g4 g <statement sequence2>;7 d7 n+ M( t& J5 L1 o
.../ M) Q- a8 K/ K+ [' t& H% Q
else0 p; N/ r% l! l& k; _- y3 ^# ^: [
<statement sequence3>;
/ ^6 A% h6 }, W. c5 P- I, ?3 Mend;
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8 ?% e' b2 `- n2循环语句5 J1 f2 f. Y! A5 Q' t
(1) from <statement sequence1>
8 _8 {/ |$ k/ J5 ^ until <condition> loop, a+ s# [( P" p+ Z, t. N
<statement sequence2>;
( w1 z& W7 C. s. i- ?: m, z' n end;
7 |" `" Z( g! b M D& w; z (2) while <condition> loop
. n- D2 Y* X0 @" n6 P <statement sequence1>;1 i) t+ N; f+ Y! k1 n
end;
( y3 |' W, f" S5 e0 m (3) repeat 9 j3 m! `9 _! n9 n
<statement sequence1>;1 ]* ?. m5 E5 V g/ a+ _9 s7 D
until <condition>;* }( i2 K! \* I4 I0 m) {
(4) for <condition> to <condition> loop: G) u% Q4 s1 z
<statement sequence1>;
& @( v' ~# b, F9 n$ _3 U9 C( e3 k next;
" {/ T2 @1 k: Y0 E3中断语句
& ]: j7 [) N; A- O# w# X o waituntil <condition> prio <integer expression>;
* n l9 q( R* t" [
# f& ^' y% x% \+ n: z# o
8 F. j! J+ D7 i7 Q/ W- O7 Y0 w以上为常用的函数！4 y1 _: j8 m3 K3 _* q4 h( a
还有很多，如有需要我把资料发到你邮箱里 ' c. s5 R2 R! I! f
& o) p) a% Y, t+ @: ~4 ^
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