擅长:python、mysql、java
<p>写入文件后,需要将其关闭<code>.close()</code>。然后用<code>open('test.txt', 'r+)</code>再次打开它</p>
<pre><code>import os
# Complete the function to append the given new data to the specified file then print the contents of the file
def appendAndPrint(filename, newData):
# Student code goes here
openfile = open(filename, 'a+')
openfile.write(newData)
openfile.close()
openfile = open(filename, 'r+')
print(openfile.read())
with open("test.txt", 'w') as f:
f.write("Hello ")
f.close()
appendAndPrint("test.txt", "World") # expected output: Hello World
</code></pre>