>>> float(12) 12.0 >>> float(-122) -122.0 >>> float(‘ada‘) Traceback (most recent call last): File "<stdin>", line 1, in <module> ValueError: could not convert string to float: ada >>> float() 0.0 >>>
时间: 2024-08-01 13:31:35
>>> float(12) 12.0 >>> float(-122) -122.0 >>> float(‘ada‘) Traceback (most recent call last): File "<stdin>", line 1, in <module> ValueError: could not convert string to float: ada >>> float() 0.0 >>>