break和continue示例：
注：
break是停止，continue是跳過繼續
vi aa.py
#!/usr/bin/python
print("break------------------")
count=0
while count<5:
print("aaa",count)
count+=1
if count==2:
break
print("bbb",count)
print("continue------------------")
count=0
while count<5:
print("aaa",count)
count+=1
if count==2:
continue
print("bbb",count)
：wq