基于对象值我如何获得NSMutableArray索引值

Question

我如何从NSMutableArray获取索引值.

我有 NSString *stringValue=@"e";

和我的 NSMutableArray *arrayValue=[[NSMutableArray alloc]init];

[arrayValue addobject:@"a"];
[arrayValue addobject:@"b"];
[arrayValue addobject:@"c"];
[arrayValue addobject:@"d"];
[arrayValue addobject:@"e"];
[arrayValue addobject:@"f"];
[arrayValue addobject:@"g"];

我想基于字符串值获取数组索引值.

怎么做

@提前致谢.

Answer 1

哇,快看一下文档？

NSUInteger index = [ar indexOfObject:@"e"];