摘要：
create#progma mark create NSStringvoid stringCreate(){//char *s="A String";->cNSString *str1=@"A String!"; //const, no memory managementNSString *st... 阅读全文
摘要：
复习void test(){struct Date{int year;int month;int day;};struct Date d={2015,5,14};d.day=6;}void test1(){typedef struct Date{int year;int month;int day;... 阅读全文