download:Vue practical business level reading Web APP to improve skills comprehensively

Using the latest technology of Vue to develop a commercial Web reading application with complete functions comparable to the original App. In the development, various knowledge points are interspersedand applied, so that you can truly feel the whole process of the development of a star product. The project has a more in-depth study of the reader, and detailed teaching of various complex functions from principle to implementation. At the same time, the project provides first-class user experience and interaction level, in addition to the implementation of functions to take you to explore a variety of excellent front-end interaction design and implementation

It is suitable for students who have some front-end development experience but lack vue.js actual combat experience and are not familiar with the overall development process and tools. They want to further improve their project development experience and master dachang interactive design ideas

It is recommended to learn the free course “Quick Start Web Reader Development” to understand the basic syntax of vue. js, develop simple projects to master the basic usage of HTML/CSS/JS, understand CSS box model and Flex layout to understand Scss/Sass. Some knowledge of ES6 syntax experience with NPM +Webpack, experience with Vue CLI construction projects

Numpy slice

In [8] : arr = np array ([[1, 2], [3, 4]]] In [9] : arr Out [9] : array ([[1, 2], [3, 4]]] In [10] : arr [0] # In the first row Out [10] : Array ([1, 2]) In [11]: arr[:, 1] Array ([2, 4]) pandas

In [24] : df = pd DataFrame (data = [[1, 2], [3, 4]]] In [25] : [25] : In df Out [25] [1] : 0 1 2 In [27] : Out[27]:0 10 1 2In [28]: df[:1, 1] # select * from Out[27]:0 10 1 2In [28]: df[:1, 1

KeyError Traceback (most recent call last) in —-> 1 df[:1, 1] ~ / miniconda3 envs/cooka/lib/python3.7 / site – packages/pandas/core/frame. Py in the getitem (self, key) 3022 if self.columns.nlevels > 1: 3023 return self._getitem_multilevel(key) -> 3024 indexer = self.columns.get_loc(key) 3025 if is_integer(indexer): The indexer = [indexer] ~ 3026 / miniconda3 / envs/cooka/lib/python3.7 / site – packages/pandas/core/indexes/range. Py in get_loc(self, key, method, tolerance) 352 except ValueError as err: 353 raise KeyError(key) from err –> 354 raise KeyError(key) 355 return super().get_loc(key, method=method, Tolerance =tolerance) 356 KeyError: (Slice (None, 1, None), 1) In [29]: df.iloc[:1, 1] # use iloc to operate rows or columns Out[29]: 0 2 Name: 1, dtype: int64