Block is a closure in OC. What is the difference between it and a closure in swift?
走同样的路,发现不同的人生
The so-called closures all control the scope of variables, so there is no need to understand the differences in depth! Never change without departing from its origin
The so-called closures all control the scope of variables, so there is no need to understand the differences in depth! Never change without departing from its origin