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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! h! E/ R# p: a# `# I6 R- g5 }( E. I; k
if <condition> then
: g4 Z3 V5 r* l V <statement sequence1>;: b9 N) ]( q& G: B$ `3 h! a* x. y# }
elseif <condition> then
4 O7 M* O2 Y& {9 a( H <statement sequence2>;: `! Q s( k9 B0 S! L; e
else / z! M7 U! ?) G% d( ~
<statement sequence3>;
, f( K8 M% p% ?) z: b5 P end;
6 ?5 O8 {- v( {9 w如果分支比较多，用：( w1 n3 `& R9 B: ~8 |
inspect <expression>) E6 M4 |3 ], L5 x9 N
when <constant_list> then" C4 }2 {# A1 P/ A3 b
<statement sequence1>;5 [4 p; ^+ E/ M8 G2 z0 T; w9 ]8 C# ?
when <constant_list> then. c3 E# Y. h8 @+ t/ u+ s
<statement sequence2>;+ A3 x: ]0 `% V! u
...
! }" P, y" R- }3 l0 j else
$ F: B0 l9 l( c j% s) y, ~ <statement sequence3>;0 Q( N8 X5 v9 T) {& m) \3 g
end;
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2循环语句
2 r( l- W+ |% |' J! A+ n$ `4 _ (1) from <statement sequence1>
. r0 W9 M5 K. X, o" h9 y until <condition> loop
$ ]) s1 L1 U. y6 s, m( [2 j <statement sequence2>;
/ J9 ^) _/ X$ h8 g1 ^ end;
, p; j) @. J1 a$ D/ U) K (2) while <condition> loop. J2 n+ ]2 P5 r2 E' I# t5 a) U
<statement sequence1>;
" P8 K& Z( h" p8 {8 S end;1 B" j- H' B0 a1 G4 C2 F
(3) repeat " }, H5 ^* S, \4 t6 b
<statement sequence1>;
3 Y! f" l; D W+ W until <condition>;
1 X& A+ v G# V. k9 J8 }. u! p (4) for <condition> to <condition> loop
2 D( N+ V0 s" b2 ]& P' w$ F <statement sequence1>;9 ]: L' ^4 k v5 e0 s( \
next;! j% [% O7 ]% B3 d
3中断语句
1 ~" K3 I8 W, C( W; U5 | o0 P m waituntil <condition> prio <integer expression>;
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以上为常用的函数！2 F% ^' W/ l& Y- z
还有很多，如有需要我把资料发到你邮箱里 , `+ w1 @9 i0 Y* ?6 ~, r- t( B+ Y
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