Install: pip install pandas pip install matplotlib # check out the doc from site import pandas as pd import matplotlib.pyplot as plt from numpy import mean def load_df(symbol): return pd.read_csv("data/{0}.csv".format(symbol)) def get_max_close(…
#coding=utf-8 import os import pandas as pd import glob def hebing(): csv_list = glob.glob('*.csv') print(u'共发现%s个CSV文件'% len(csv_list)) print(u'正在处理............') for i in csv_list: fr = open(i,'r').read() with open('haha.csv','a') as f: f.write(fr)…
多日前的上篇介绍了csv表格,以及JS结合后端PHP解析表格填充表单的方法.其中csv转换成二维数组的时候逻辑比较复杂多坑,幸好PHP有丰富的库函数来处理,而现在用JS解析的话就没有那么幸运了,一切都要自己撸一个出来 或者 →_→ 引入一个库. JS导入CSV--读取文本 JS能前端读取文件吗?以前只有通过 IE的ActiveXObject或者Flash才能本地读取文件.随着H5的出现,这个问题有普遍解了.Talk is cheap,show you the code $.fn.csv2arr…
asp.net mvc返回文件: public ActionResult ExportReflection(string accessToken) { var reflections = GetCmsReflectionList(accessToken); var sb = new StringBuilder(); sb.AppendFormat("{0,-10},{1,-10},{2,-10},{3,-10},{4,-10},{5,-100},{6,-100},{7,-50}", &…