（初学者）
我想安装tensorflow 2，但似乎可以弄清楚如何。我见过各种不同的方法，但不确定最好的方法是什么。如何在Mac上使用anaconda安装Tensorflow 2？
这是我到目前为止尝试过的：
pip3 install -q tensorflow==2.0.0
ERROR: Could not find a version that satisfies the requirement tensorflow==2.0.0 (from versions: none)
ERROR: No matching distribution found for tensorflow==2.0.0
jordan2 ~ % pip3 install tensorflow
ERROR: Could not find a version that satisfies the requirement tensorflow (from versions: none)
ERROR: No matching distribution found for tensorflow
jordan2 ~ % conda install -c conda-forge tensorflow
zsh: command not found: conda
jordan2 ~ % pip install tensorflow-gpu
ERROR: Could not find a version that satisfies the requirement tensorflow-gpu (from versions: none)
ERROR: No matching distribution found for tensorflow-gpu