实时监控输入框,两个输入框数据不为零的时候按钮变色

//判断按钮变色 var invoiceName = 0 ; var invoiceNumber = 0; console.log(invoiceName); //实时监控输入框内容 $(document).on("input propertychange",".invoiceName", function(){ invoiceName = $(".invoiceName").val().l

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