标签:csv python writer vbn reader line CSV open
s="""\ 1,tom,20, 2,jerry,30, 3,,, """ with open('c:/vbn.csv',mode='wt+') as f: # for line in s.splitlines(keepends=True): # print(line) # f.write(line) # f.writelines(s.splitlines(keepends=True)) for line in s.splitlines(): f.write(line+'\n') csv_body="""\ id,name,age,comment 1,zs,18,"I'm vbn" 2,ls,20,"this is a ""test"" string" 3,ww,22,"发士大夫 吧" """ from pathlib import Path import csv path='c:/b/p/vbn.csv' p=Path(path) if not p.parent.exists(): p.parent.mkdir(parents=True) line1=['1','tom',20,''] line2=('1','jerry',30) line3=[line1,line2] with open(str(p),mode='w') as f: writer=csv.writer(f) writer.writerow(line1) writer.writerow(line2) writer.writerows(line3) with open(str(p),mode='rt+') as f: reader=csv.reader(f) for line in reader: if line: print(line,type(line)) p=Path('c:/b/p/vbn.csv') with open(str(p),mode='rt+') as f: reader=csv.reader(f) print(next(reader)) row=[4,'vbn',22,'bnm'] rows=[ (5,'cvb',22,'ui\to'), (7,'xcv',77,'') ] with open(str(p),mode='a+') as f: writer=csv.writer(f) writer.writerow(row) writer.writerows(rows)
标签:csv,python,writer,vbn,reader,line,CSV,open 来源: https://www.cnblogs.com/dissipate/p/13697576.html
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