for与if、else的使用

 1 #!/usr/bin/env python
 2 def fun3(x) :
 3     num =0
 4     for i in x :
 5         if i == "" :
 6             num += 1
 7     if num == 0 :
 8         a = "没有空内容"
 9     else :
10         a = "有空内容"
11     return print(a)
12 
13 s = ['12','3124','wqw','']
14 fun3(s)