方法1:使用readlines()方法逐行读取文件内容,并利用len()函数统计行数。 def count_lines(filename): with open(filename, 'r') as file: lines = file.readlines() line_count = len(lines) return line_count filename = 'example.txt' line_count = count_lines(filename) print("文件", filename, ...
我们可以使用一个循环来读取文件中的每一行,使用enumerate返回count,然后使用计数器来计算行数。下面是示例代码: f1 =open("...\\evaluate.jsonl","r",encoding="utf-8")# 统计有多少行count=-1forcount, lineinenumerate(f1):passcount+=1print(count) f1.close() 方法四: #更好的方法count=0thefile=...
Afast and compactsolution to getting line count could be a generator expression.If the file contains a vast number of lines(like file size in GB), you should use the generator for speed. This solution accepts file pointer and line count. To get a faster solution, use the unbuffered (raw)...
8、count:计数 9、swap:互换 10、case:情形 11、path:路径 12、new:新的\新建 13、project:项目 14、test:测试 15、file:文件 16、data:数据 四、去除/查询/计数 1、strip:去除 2、index:索引 3、find:查找 4、count:计数 5、start:开始 6、end:结束 7、chars:字符 8、sub:附属 五、获取输入/格式化...
count=0 the_file= open(file_path,'rb')whileTrue: buffer= the_file.read(65536)ifnotbuffer:breakcount+= buffer.count(b'\n')returncountforfinlinecount_w, linecount_1, linecount_2, linecount_3:print(f.__name__, f( ))forfinlinecount_1, linecount_2, linecount_3:print("%s: %.2f"...
linecount_2( ): count = 0 for line in open('nuc').xreadlines( ): count += 1 return count def linecount_3( ): count = 0 thefile = open('nuc') while 1: buffer = thefile.read(65536) if not buffer: break count += buffer.count('\n') return count for f in linecount_wc,...
count += 1 print(f'line {count}: {line}') 输出结果如下: line 1: Beautiful is better than ugly. line 2: Explicit is better than implicit. line 3: Simple is better than complex. ... 以下示例使用 readline() 方法逐行读取文件内容: ...
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# 1.打开文件 file_object = open('/Users/liuxiaowei/PycharmProjects/路飞全栈/day09/files/info.txt', mode='rt', encoding='utf-8') # 2.读取文件内容,并赋值给data data = file_object.read() # 3.关闭文件 file_object.close() 1. 2. 3. 4. 5. 6. windows系统中写绝对路径容易出问题: ...
File "<stdin>", line 1, in <module> IndexError: no such group findall 在字符串中找到正则表达式所匹配的所有子串,并返回一个列表,如果有多个匹配模式,则返回元组列表,如果没有找到匹配的,则返回空列表。 注意: match 和 search 是匹配一次 findall 匹配所有。