iPhone : How to check whether a substring exists in a string?
我有一些字符串名称，我想比较该字符串是否包含像“_thumb.png”这样的子字符串。
[string rangeOfString:string1].location!=NSNotFound
rangeOfString：文档。
You can try this:
NSString *originalString;
NSString *compareString;
Let your string be stored in originalString and the substring that you want to compare is stored in compareString .
if ([originalString rangeOfString:compareString].location==NSNotFound)
{
NSLog(@"Substring Not Found");
}
else
{
NSLog(@"Substring Found Successfully");
}
ssteinberg's answer looks pretty good, but there is also this:
NSRange textRange;
textRange =[string rangeOfString:substring];
if(textRange.location != NSNotFound)
{
//Does contain the substring
}
which I found here.
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