目录指定pandas对象作为NumPy函数的参数元素的应用行/列的应用pandas.DataFrame，pandas.Series方法Pandas对象方法的函数应用适用于Series的每个元素：map（），apply（）应用于DataFrame的每个元素：applymap（）应
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I\'m dealing with a problem which needs to work with a lot of data. Currently its values are represented as an unsigned int. I know that real values do not exceed a limit of 1000.
Friends, I want to read a pair of characters separated by \\t. I want to continue reading the input until user enters z for any of the characters.
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