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clear常用于清除工作空间变量，避免数据冲突。多数m文件开头使用它来确保运行环境干净，用法简单，直接输入clear即可执行。 2、 输入clear命令可清除MATLAB中的所有变量。 3、 新建abc三个变量后，使用clear命令可一键全部清除。 4、 输入clear即可清除工作区中的 ...