判断NSString是否包含字符串或字符串开头结尾

/* These methods return length==0 if the target string is not found. So, to check for containment: ([str rangeOfString:@"target"].length > 0).  Note that the length of the range returned by these methods might be different than the length of the target string, due composed characters and such.

*/

-(NSRange) rangeOfString:(NSString *) astring;方法:


        NSString  *strPath = @"qwer123asd";

        if ([strPath rangeOfString:@"123"].length >0) {

         //OK

        }


上面是API注释,从length就可以判断出目标字符串是否被发现。


-(BOOL) hasPrefix:(NSString *) astring;检查字符串是否以astring;   //判断是否开头

-(BOOL) hasSuffix:(NSString *) astring;检查字符串是否以astring;   //判断是否结尾

if([yourCheckString hasPrefix:@"targetString"]){

   //OK

}


直接返回BOOL判断是否以某个字符串开头或结尾







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