如何通过代码获得最后的打印文本Python

output = ""

def print_and_save(text):
    global output
    print(text)
    output += text + "\n"

# 示例用法
print_and_save("Hello, World!")
print_and_save("This is a test.")
print(output)  # 输出最后的打印文本

import sys

def print_to_file(text, filename):
    with open(filename, "a") as file:
        print(text, file=file)

# 示例用法
print_to_file("Hello, World!", "output.txt")
print_to_file("This is a test.", "output.txt")

# 读取文件内容
with open("output.txt", "r") as file:
    output = file.read()
print(output)  # 输出最后的打印文本

import io

output = io.StringIO()

def print_to_memory(text):
    print(text, file=output)

# 示例用法
print_to_memory("Hello, World!")
print_to_memory("This is a test.")
output.seek(0)  # 将文件指针移动到开头
print(output.read())  # 输出最后的打印文本