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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
, a9 L' o; Y: n# X if <condition> then8 P @& R' ]; J8 t
<statement sequence1>;
. [/ B5 H. f9 \9 h9 F9 x elseif <condition> then# F; ^8 G3 r+ B3 q; j
<statement sequence2>;# Y. h6 V( t& M6 D, t4 N
else
( D( T' x7 R1 Q0 W$ k <statement sequence3>;+ r" w$ x @- v) |( i, j5 n
end;5 j0 m0 R# y$ b0 Y( S' Q4 c: Z# o8 p
如果分支比较多，用：
3 ?' f+ [8 c" i; ^2 \ t1 T inspect <expression>$ V4 G- k& |* G) K) \
when <constant_list> then
; o0 G. c7 h# ~0 \4 S9 Q+ a& _/ M: Z! _ <statement sequence1>;+ m1 P! H% d) z6 M' q
when <constant_list> then
8 }6 }" `1 r- j4 j8 [0 z5 L <statement sequence2>;$ H5 h7 a( _ c% W$ {- K: |
.... F4 W0 ]+ i& O! x0 q8 ?
else
$ y& Q' f1 E3 |3 c& L <statement sequence3>;
5 C1 I1 W, e Xend;% \ I$ U' |( N ]
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2循环语句
/ D8 d F2 b' {8 ^ (1) from <statement sequence1>. d* |5 I( u: ^* y8 M% N0 R
until <condition> loop
) @. h. b5 s( {1 @, J% f <statement sequence2>;0 I# R) V$ s6 N+ T7 k
end;. }/ k" n" r* K+ ^) i) x
(2) while <condition> loop3 K- B) o4 { `1 Q2 z4 j4 B( I
<statement sequence1>;; i; M# f/ d \" y# M* g
end;: h _, S6 y0 W( F! H4 ~- T
(3) repeat
- ~0 w, c, h( i/ i } <statement sequence1>;
1 O- H Z4 e& z( q- V9 x$ ~ until <condition>;
. N" E8 r: R2 C7 f8 g (4) for <condition> to <condition> loop* n5 @) Q9 s! s9 Y+ J/ H' {& E
<statement sequence1>;
7 E) {: p, C4 l( w- }% u( y B next;1 ~8 d- R/ M& z/ u+ u: E
3中断语句% X4 M0 p' C1 @6 z; I
waituntil <condition> prio <integer expression>;' e. Y, z3 f6 C# ~2 {2 d( b
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以上为常用的函数！
' M8 B# ]/ @1 K( F& ^还有很多，如有需要我把资料发到你邮箱里
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