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pandas round方法保留两位小数的设置实现_python_脚本之家
>>> df=pd.DataFrame([(.21, .32), (.01, .6), (.66, .03), (.21, .183)],columns=['dogs','cats']) >>> df dogs cats 00.210.320 10.010.600 20.660.030 30.210.183 # 统一保持2位小数 >>> df.round(2) dogs cats 00.210.32 ...
www.jb51.net/article/2595...htm 2025-4-10
Python人脸识别之微笑检测_python_脚本之家
train_dogs_dir = os.path.join(train_dir, 'unsmile') os.mkdir(train_dogs_dir) validation_cats_dir = os.path.join(validation_dir, 'smile') os.mkdir(validation_cats_dir) validation_dogs_dir = os.path.join(validation_dir, 'unsmile') os.mkdir(validation_dogs_dir) test_cats_dir = os....
www.jb51.net/article/2311...htm 2025-4-22
python正则表达式最详解_python_脚本之家
# matchObj1.group() : Cats are smarter than dogs # matchObj1.group(1) : Cats # matchObj1.group(2) : smarter # matchObj2.group() : Cats are smarter than dogs # matchObj2.group(1) : Cats are # matchObj2.group(2) : than # matchObj3.group() : Cats are smarter than dogs ...
www.jb51.net/article/2272...htm 2025-4-20