EISDIR：您使用了目录参数来调用要求文件参数的函数。
EISDIR — You called a function that requires a file argument with a directory argument.
输出格式包含了关于目录、文件、函数、行以及块的总结信息。
The export format contains nested summary information about directories, files, functions, lines, and blocks.
报告包括了目录名以及函数名。
The report includes the directory name, file name, and function name.
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