<input id="password" type="password" onpaste="return false" onselectstart="return false" />
onpaste="return false":防止粘贴
onselectstart="return false":防止自制
<input id="password" type="password" onpaste="return false" onselectstart="return false" />
onpaste="return false":防止粘贴
onselectstart="return false":防止自制