0
NSString * str = @"ABCDEFGHILMN";
NSDictionary *dictOdd = [[NSDictionary alloc] initWithObjectsAndKeys:
[NSNumber numberWithInt:0], @"A",
[NSNumber numberWithInt:1], @"B",
[NSNumber numberWithInt:2], @"C",
[NSNumber numberWithInt:3], @"D",
...............................
nil];
NSDictionary *dictEven = [[NSDictionary alloc] initWithObjectsAndKeys:
[NSNumber numberWithInt:1], @"A",
[NSNumber numberWithInt:0], @"B",
[NSNumber numberWithInt:5], @"C",
[NSNumber numberWithInt:7], @"D",
...............................
nil];
int sum = 0;
for (int i=1; i < [str length]; i++){
if(i % 2){
sum += [dictPair objectForKey:str[i]];
}else{
sum += [dictEven objectForKey:str[i]];
}
}
我已经创建了2个字典存储int数字/字母,每个字母都有一个int值。NSDictionary和循环
我会使int数与我的str值相关的总和,但我不知道如何分配objectForKey:str [i]];
从技术上讲,应该是'%C',因为'characterAtIndex:'返回一个unichar。 – Chuck
谢谢。对于字符串的字符格式,我有点生疏 – utahwithak