Xcode 检查字符串中是否有内容

我想检查一下字符串中是否有东西。 是这样的：

stringByReplacingOccurrencesOfString:@"h" withString:@"a"

但是我想检查字符串中是否有“h”。

考虑一下，如果字符串中存在“h”字符，则该方法返回的NSRange将有效

即

给你：

NSString *theString = @"just any string that you want";
NSRange match;
match = [theString rangeOfString: @"you"];
if (match.location == NSNotFound)
          NSLog (@"Sorry, not found.");
else
          NSLog (@"Match found at index %i", match.location);

享受。

Try

boolhexists=（[mystringindexofsubstring:@“h”！=NSNotFound）
NSString *theString = @"just any string that you want";
NSRange match;
match = [theString rangeOfString: @"you"];
if (match.location == NSNotFound)
          NSLog (@"Sorry, not found.");
else
          NSLog (@"Match found at index %i", match.location);