我已经跑!pip install contractions进去了jupyter notebook，它无法安装库收缩，并显示下面的消息；
错误：
命令出错，退出状态为 1：命令：'C:\Users\tassa\anaconda3\python.exe' -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\Users\tassa\AppData\Local\Temp\pip-install-6m7bhg7o\pyahocorasick\setup.py'"'"'; file ='"'"'C:\Users\tassa\AppData\Local\Temp\pip-install-6m7bhg7o\pyahocorasick\setup.py'"'"';f=getattr(tokenize, '"'"'open' "'"', open)( file );code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"'); f.close();exec(compile(code, file , '"'"'exec'"'"'))' bdist_wheel -d 'C:
运行 build_ext 构建“ahocorasick”扩展错误：需要 Microsoft Visual C++ 14.0 或更高版本。使用“Microsoft C++ 构建工具”获取它： https
://visualstudio.microsoft.com/visual-cpp-build-tools/ ---------- ------------------ 错误：pyahocorasick 构建轮子失败错误：命令出错，退出状态为 1：命令：'C:\Users\tassa\anaconda3\python.exe ' -u -c '导入系统，设置工具，标记化；sys.argv[0] = '"'"'C:\Users\tassa\AppData\Local\Temp\pip-install-6m7bhg7o\pyahocorasick\setup.py'"'"'; file ='"'"'C:\Users\tassa\AppData\Local\Temp\pip-install-6m7bhg7o\pyahocorasick\setup.py'"'"';f=getattr(tokenize, '"'"'open'文件，'"'"'exec'"'"'))' 安装 --record 'C:\Users\tassa\AppData\Local\Temp\pip-record-b10kt37w\install-record.txt' --single-版本-外部管理 --compile --install-headers 'C:\Users\tassa\anaconda3\Include\pyahocorasick' cwd: C:\Users\tassa\AppData\Local\Temp\pip-install-6m7bhg7o\pyahocorasick
Complete输出（5 行）：运行 install running build running build_ext building 'ahocorasick' 扩展错误：需要 Microsoft Visual C++ 14.0 或更高版本。使用“Microsoft C++ 构建工具”获取它： https ://visualstudio.microsoft.com/visual-cpp-build-tools/ ---------------------------------------- 错误：命令出错，退出状态为 1： 'C:\Users\tassa\anaconda3\python.exe' -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\Users\tassa\AppData\Local\Temp\pip-install-6m7bhg7o\pyahocorasick\setup.py'"'"'; file ='"'"'C:\Users\tassa\AppData\Local\Temp\pip-install-6m7bhg7o\pyahocorasick\setup.py'"'"';f=getattr(tokenize, '"'"'open' "'"', open)( file );code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"'); f.close();exec(compile(code, file , '"'"'exec'"'"