摘要：
iOS programming Delegation and Text Input 1.1 Text Fields CGRect textFieldRect = CGRectMake(40, 70, 240, 30);UITextField *textField = [[UITextField alloc] initWithFrame:textFieldRect]; // Setti... 阅读全文
摘要：
Objective-C Protocols 1.1 Formal Protocols A formal protocol (like an informal protocol) is a named list of methods and properties. formal protocol （像informal protocol）是一系列方法和属性的名字列表。 However, a ... 阅读全文