如何使用Js填充下拉列表 [英] How Can I Populate Dropdown List Using Js

问题描述

如何填充html子选择ddl根据父html选择ddl使用js



//父ddl有选项。

< ;药水值=数字>数字

<药水值=字母>字母

< potion value =OPERATOR> OPERATOR





//儿童ddl在js数组中有价值



numeric [数字 ] = [ 1\" ， 2， 3， 4， 5， 6， 7，...];

alphabetic [alphabetic] = [A，B，C，D，E，F，G，......];

OPERATOR [OPERATOR] = [+， - ，*，％，/，..];

//

how can i populate html child select ddl according parent html select ddl using js

//parent ddl have options.
<potion value="numeric">numeric
<potion value="alphabetic">alphabetic
<potion value="OPERATOR">OPERATOR


//child ddl have value in js array

numeric["numeric"]=["1","2","3","4","5","6","7",...];
alphabetic["alphabetic"]=["A","B","C","D","E","F","G",...];
OPERATOR["OPERATOR"]= ["+","-","*","%","/",..];
//

推荐答案

你可以查看这个



http://javascript.about.com/library/bldydrop1.htm [ ^ ]

You can check this

http://javascript.about.com/library/bldydrop1.htm[^]

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