Python notes (1)

zhaozj2021-02-16  104

String: "abcd", use "/" as the C language to make a escape. S [2: 4] intercepted a paragraph, s = "joki", then s [: - 1] = "JOK"

Member function declaration: The first parameter must be Self, and when calling this class in the member function, self.xxxfunc () form

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