擅长:python、mysql、java
<p>我想这就是你想要的:</p>
<pre><code>import time
import sys
import os
def main():
while True:
txt = input("please enter value \n")
txt1 = input("Please enter value only 2 \n")
if txt1 == 2:
print txt
print txt1
time.sleep(3)
if __name__ == '__main__':
sys.exit(main())
</code></pre>