当我尝试运行以下代码时,我不断收到"无法连接'str'和'int'对象"错误.我指出第6行是问题的根源,但我真的看不出错误!我的类型似乎都是一致的.
def DashInsert(num):
num_str = str(num)
new_str = ''
for i in num_str:
var1 = num_str[i:i+1]
var2 = num_str[i+1:i+2]
if var1 % 2 == 1 and var2 % 2 == 1:
new_str = new_str + num_str[i:i+1] + "-"
else:
new_str = new_str + num_str[i:i+1]
return new_str
# keep this function call here
# to see how to enter arguments in Python scroll down
print DashInsert(raw_input())