程序源弃坑之路7（js软键盘）

来源：互联网发布：音悦台点歌机加歌软件编辑：程序博客网时间：2024/05/21 15:40

代码描述了三个text框，前两个是0到9的数字输入，框后有clr清除键，第三个框后有sum按钮可以使前两个数相加。框内禁止键盘输入，在text属性中设置只读。要把输入的数字转化为int的数字不然1111+2222=11112222而不是3333.。。。转化字符parseInt。

<HTML>  <HEAD><meta charset="gb2312">     <TITLE>JavaScript示例集</TITLE><SCRIPT language=JavaScript>  function KeyDisp1(aKey)   {   if(aKey!="")      document.KeyForm.keybox1.value=document.KeyForm.keybox1.value+aKey;  }  function KeyDisp2(aKey)   {   if(aKey!="")      document.KeyForm.keybox2.value=document.KeyForm.keybox2.value+aKey;  }function KeyFormClr1() { document.KeyForm.keybox1.value="";  }function KeyFormClr2() { document.KeyForm.keybox2.value="";  }function KeyFormsum() {//parseInt 将字符串转化为数字 document.KeyForm.keybox3.value=parseInt(document.KeyForm.keybox1.value)+parseInt(document.KeyForm.keybox2.value);  }</SCRIPT></head><body><SCRIPT language=JavaScript> document.write("<HR>"); document.write("<H3>示例 软键盘制作</H3>"); document.write("<HR>"); document.write('<FORM NAME="KeyForm">'); document.write('<INPUT NAME="keybox1" readonly="readonly" TYPE="text" SIZE=60>'); document.write('<INPUT TYPE="button" VALUE="Clr" onClick="KeyFormClr1()"><BR>'); for(j=0;j<10;j++) {  document.write('<INPUT TYPE="button" VALUE=" ',j,' " onClick="KeyDisp1('+"'"+j+"'"+')">'); }document.write("<BR><BR>"); document.write('<INPUT NAME="keybox2" readonly="readonly" TYPE="text" SIZE=60>'); document.write('<INPUT TYPE="button" VALUE="Clr" onClick="KeyFormClr2()"><BR>'); for(j=0;j<10;j++) {  document.write('<INPUT TYPE="button" VALUE=" ',j,' " onClick="KeyDisp2('+"'"+j+"'"+')">'); }document.write("<BR><BR>"); document.write('<INPUT NAME="keybox3" readonly="readonly" TYPE="text" SIZE=60>');document.write('<INPUT TYPE="button" VALUE="sum" onClick="KeyFormsum()"><BR>'); document.write('</FORM>'); document.write("<HR>");</SCRIPT></body></html>

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