You need to compute the number of lines in a file. Solution The simplest approach, for reasonably sized files, is to read the file as a list of lines so that the count of lines is the length of the list. If the file’s path is in a string bound to the thefilepath variable, th...
'r') as file: for line in file: lines += 1 characters += len(line) return lines, characters filename = 'example.txt' lines, characters = count_lines_characters(filename) print("文件行数:", lines) print("文件字符数:", characters) 复制...
方法2:使用enumerate()函数遍历文件的每一行,并利用计数器统计行数。 def count_lines(filename): with open(filename, 'r') as file: line_count = 0 for line in file: line_count += 1 return line_count filename = 'example.txt' line_count = count_lines(filename) print("文件", filename,...
# 打开文件withopen('file.txt','r')asfile:line_count=0for_infile:line_count+=1# 输出文件的行数print(f'文件的行数为:{line_count}') 1. 2. 3. 4. 5. 6. 7. 8. 方法三:使用enumerate()方法 使用enumerate()方法可以同时获取行号和行内容,通过遍历文件对象并计数,可以得到文件的行数。 # 打...
defprint_file_info(self):print("文件的统计信息如下:")print("文件中包含的数字数量:%s"%self.count_number_str())print("文件中包含的非空白字符数量:%s"%self.count_not_space_str())print("文件中包含的空白字符数量:%s"%self.count_space_str())print("文件中包含的行数:%s"%self.count_lines()...
https://stackoverflow.com/questions/19001402/how-to-count-the-total-number-of-lines-in-a-text-file-using-pythonwithopen('data.txt')asf:printsum(1for_inf) 分类:python 好文要顶关注我收藏该文微信分享 cdekelon 粉丝-5关注 -3 +加关注
I tried many times..but i was unsuccessful. How to count a line,i tried count('\n') by reading file but it doesn't work for me.
count+=1print fname+'---',countreturncountif__name__=='__main__':startTime=time.clock()getFile(basedir)totalline=0forfilelistinfilelists:totalline=totalline+countLine(filelist)print'total lines:',totalline print'Done! Cost Time: %0.2f second'%(time.clock()-startTime) 结果...
import pandas as pd df_data = pd.read_csv(data_file, names=col_list) 显示原始数据,df_data.head() 运行apply函数,并记录该操作耗时: for col in df_data.columns: df_data[col] = df_data.apply(lambda x: apply_md5(x[col]), axis=1) 显示结果数据,df_data.head() 2. Polars测试 Polars...
filename='example.txt'word_count=count_words(filename)print(f'Total words in{filename}:{word_count}') 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 在上面的示例中,我们定义了一个count_words()函数,接收一个文件名作为参数。函数使用with语句打开文件,并使用for循环逐行读取文件内容。对于每一行,...