input只能输入数字(键盘抬起和粘贴事件)
<input type="tel" id="phone" placeholder="请输入电话号码" autocomplete="off" maxlength="11" onkeyup="this.value=this.value.replace(/[^0-9]/g,'')" onafterpaste="this.value=this.value.replace(/[^0-9]/g,'')"/>
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<input type="tel" id="phone" placeholder="请输入电话号码" autocomplete="off" maxlength="11" onkeyup="this.value=this.value.replace(/[^0-9]/g,'')" onafterpaste="this.value=this.value.replace(/[^0-9]/g,'')"/>
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