<input type="text" onkeypress="return (function(key,that){return (key>47&&key<58) && ((that.value.length%5==0)?that.value+=' ':1)})(event.keyCode,this)" />

demo: 

相关文章:

  • 2022-12-23
  • 2022-12-23
  • 2022-02-07
  • 2022-12-23
  • 2022-12-23
  • 2022-12-23
  • 2022-12-23
  • 2022-12-23
猜你喜欢
  • 2022-12-23
  • 2022-12-23
  • 2022-12-23
  • 2022-12-23
  • 2022-12-23
  • 2022-12-23
  • 2022-12-23
相关资源
相似解决方案