小编use*_*209的帖子

我试图将mainImg带到屏幕的底部.

 /*
 * Copyright (C) 2012 Capricorn
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or …

<svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">

可xmlns="http://www.w3.org/2000/svg"这是xmlns="https://www.w3.org/2000/svg"？

还是xmlns="//www.w3.org/2000/svg"？