摘要：1.Person *p=[[Person alloc]init]; [p eat]; [Person name:@"wen" :@"male"]; [p release];2.Person *p=[[[Person alloc]init]autorelease]; [p eat]; [Person name:@"wen" :@"male"];3.@autoreleasepool { Person *p=[[Person alloc]init]; [p eat]; [Person name:@"wen&qu 阅读全文

摘要：// 初始化 Person* p = [[Person alloc] init]; // 设置器调用 [p setEat:@"吃饭"]; [p setSleep:@"睡觉"]; 阅读全文

摘要：//NSString转换char NSString * str1= @"Test"; const char * c1 =[str1 UTF8String]; //char转换NSString const char * c2 ="test"; NSString *str2 = [NSStringstringWithUTF8String:c2]; 阅读全文

摘要：//1、创建常量字符串。 NSString *astring = @"This is a String!"; //2、创建空字符串，给予赋值。 NSString *astring = [[NSString alloc] init]; astring = @"This is a String!"; NSLog(@"astring:%@",astring); [astring release]; //3、在以上方法中，提升速度:initWithString方法 NSString *astring = [[NSString alloc] i 阅读全文