Python File writelines()用法及代码示例

文件 writelines() 方法

writelines() 方法是 Python 中的内置方法，用于将字符串列表(列表的多个字符串/项目)写入文件。

用法:

    file_object.writelines(list)

参数：

• list– 它表示要写入文件的字符串/文本列表。

返回值：

这个方法的返回类型是<class 'NoneType'>，它什么都不返回。

例：

# Python File writelines() Method with Example

# creating a file
myfile1 = open("hello1.txt", "w")

# writing list of the strings
myfile1.writelines(["Hello, how are you?","I am fine.\n"])

# declare a list of strings
str_list = ["Shivang ","Prem ","David ","Linda "]
# writing list of the strings
myfile1.writelines(str_list)

# closing the file
myfile1.close()

# reading the file and printing text
myfile1 = open("hello1.txt", "r")
print(myfile1.read())
# closing the file
myfile1.close()

输出

Hello, how are you?I am fine.
Shivang Prem David Linda