Python 使用print实现进度

import time

print("0%",end='')
time.sleep(2)
print("
1%",end='')
time.sleep(2)
print("
2%",end='')
time.sleep(2)
print("
5%",end='')
time.sleep(2)
print("
10%",end='')
time.sleep(2)
print("
90%",end='')
time.sleep(2)
print("
100%",end='')