name stem is not defined

As an AI language model, I can provide a definition of "stem" for you:

The stem is the part of a word that remains after removing any prefixes or suffixes. It is the core or base of the word that carries its essential meaning. For example, in the word "unhappy," the stem is "happy," and the prefix "un-" changes the meaning to indicate the opposite. Similarly, in the word "running," the stem is "run," and the suffix "-ing" indicates that the action is happening in the present continuous tense.

相关问题

NameError: name 'stem_net' is not defined报错了

这个错误通常是因为在代码中使用了未定义的变量或函数。在这种情况下，'stem_net'变量没有被定义，因此Python无法识别它。要解决这个问题，您需要确保在使用变量或函数之前先定义它们。您还可以检查变量或函数的拼写是否正确，以及它们是否在正确的作用域内定义。如果您正在使用模块，请确保已正确导入模块。如果您能提供更多的上下文和代码，我可以更好地帮助您解决这个问题。

$(firstword $(wildcard $(LDS_SRC_STEM).S $(LDS_SRC_STEM).sx) $(LDS_SRC_STEM).S) what is the usage of $(wildcard) and $(firstword)?

`$(wildcard)` is a function in makefile that searches for files in the specified path. It returns a space-separated list of all the files that match the pattern.

`$(firstword)` is another function in makefile that returns the first word of a given string.

In the given code snippet, `$(wildcard $(LDS_SRC_STEM).S $(LDS_SRC_STEM).sx)` searches for all the files with extension `.S` and `.sx` in the path specified by the variable `LDS_SRC_STEM`. If multiple files are found, they are returned as a space-separated list.

`$(firstword)` is then used to extract the first file name from the list returned by `$(wildcard)`. If the list is empty, then `$(LDS_SRC_STEM).S` is used as a fallback value.

Finally, the entire expression is enclosed in parentheses as it is a part of a command line statement that expects a single file name.