Variable (I) is defined in the loop, so I in the loop body is not visible, it is purple, the book says, but I watched three or four people on the Internet to explain, I feel from their explanation should be (in cycle in vitro invisible, because I was defined in the loop, so in cycle in vitro is equivalent to no I this variable, in circulation in vitro printf (" % d \ n ", I) will be an error, is not visible outside the loop) don't know what I think right
CodePudding user response:
refer to the original poster maxiangyu_ response: variable I define the loop statement, so I in the loop body is not visible, it is purple, the book says, but I watched three or four people on the Internet, I feel from their explanation should be (in cycle in vitro invisible, because I was defined in the loop, so in cycle in vitro is equivalent to no I this variable, in circulation in vitro printf (" % d \ n ", I) will be an error, is not visible outside the loop) don't know what I think right is nothing wrong with CodePudding user response:
reference 1st floor lin5161678 response: Quote: refer to the original poster maxiangyu_ response: is nothing wrong with CodePudding user response:
Variables defined in the loop, its scope is circulating in the body, therefore, recycling is invalid, CodePudding user response:
The reference 3 building self-confidence boy reply: variables defined in the loop, its scope is circulating in the body, therefore, recycling is invalid, CodePudding user response:
I hope it can help you: https://blog.csdn.net/it_xiangqiang/category_10581430.html 
