Python 实现在文件中的每一行添加一个逗号

#import osFrom_file=open('D://python//A//tianqi.txt')f=open('niuniu1.txt','w')count=0huancun=[]for each_line in From_file: #print(type(each_line)) each_line 是字符类型 Delstr=list(each_line) Delstr.pop() #弹出n Delstr.pop() #弹出/ Delstr.append(',/n') huancun="".join(Delstr) print(huancun) f.writelines(huancun) count+=1 huancun=[]f.close()From_file.close()print('文件中总共有：%d行'%count)