objective-凯发ag旗舰厅登录网址下载

obj-c 2.0增加了许多核心对象字面量的简单语法，向ruby学习吗？
直接上代码：

#import int main(void){@autoreleasepool{nsstring *str0 = @"hello";nsstring *str1 = [nsstring stringwithformat:@"%@",@"hello"];nslog(@"%@ %@",str0,str1);if(str0 == str1)nslog(@"str0 == str1");if([str0 isequal:str1])nslog(@"str0 equal str1");if([str0 compare:str1] == nsorderedsame)nslog(@"str0 compare str1 is same");nsmutableset *set = [nsmutableset new];nslog(@"count %lu at begin",[set count]);[set addobject:str0];[set addobject:str1];[set addobject:[str0 stringbyappendingstring:str1]];nslog(@"count %lu at now",[set count]);nslog(@"%@",set);//nslog(@"%@ %@",set[0],set[2]);nsmutabledictionary *dict = [[nsmutabledictionary alloc] init];[dict setdictionary:@{@1:@1,@2:@"hh",@"hi":@1}];dict[@11] = @"what!?";nslog(@"%@ : %@",dict[@1],dict);nsmutablearray *ary = [nsmutablearray arraywitharray:@[@1,@2,@"hehe"]];nslog(@"%@",ary);ary[2] = @"smile!";nslog(@"%@ : %@",ary[0],ary);@try{nslog(@"value with bad index: %@",ary[11]);nslog(@"never see me!");}@catch(nsexception *e){nslog(@"caught %@:%@",[e name],[e reason]);}@finally{nslog(@"at last!!!");}}return 0; }

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