Python文件打开与关闭 - open函数和close方法

# 文件打开与关闭相关语法示例
file = open(filename, mode, encoding)
file.close()

# 基本用法示例
# 打开文件
file = open("example.txt", "r", encoding="utf-8")

# 读取内容
content = file.read()
print(content)

# 关闭文件
file.close()

# 详细代码示例
# 示例1：读取文件
try:
    file = open("data.txt", "r", encoding="utf-8")
    content = file.read()
    print("文件内容：", content)
finally:
    file.close()

# 示例2：写入文件
try:
    file = open("output.txt", "w", encoding="utf-8")
    file.write("Hello, Python!")
    print("写入成功")
finally:
    file.close()