main.m
#import "person.h"
int main(int argc, const char * argv)
",@"dfgh"];
predicate = [nspredicate predicatewithformat:s];
filterarrary = [persons filteredarrayusingpredicate:predicate];
nslog(@"filterarrary:%@",filterarrary);
//4.以...開頭 beginswith
s = [nsstring stringwithformat:@"name beginswith 'x'"];
predicate = [nspredicate predicatewithformat:s];
filterarrary = [persons filteredarrayusingpredicate:predicate];
nslog(@"filterarrary:%@",filterarrary);
//5.以...結尾endswith
s = [nsstring stringwithformat:@"name endswith 'u'"];
predicate = [nspredicate predicatewithformat:s];
filterarrary = [persons filteredarrayusingpredicate:predicate];
nslog(@"filterarrary:%@",filterarrary);
//模糊搜尋
//6.包含...字元
s = [nsstring stringwithformat:@"name contains 'a'"];
predicate = [nspredicate predicatewithformat:s];
filterarrary = [persons filteredarrayusingpredicate:predicate];
nslog(@"filterarrary:%@",filterarrary);
//7.以...結尾
// like *:任意多個字元 ?:表示乙個字元
/**n 以n結尾
*n* 字串中包含n,只要字串中有n就行
*n? 倒數第二位是n
?n* 第二位是n
*/s = [nsstring stringwithformat:@"name like '*n'"];
predicate = [nspredicate predicatewithformat:s];
filterarrary = [persons filteredarrayusingpredicate:predicate];
nslog(@"filterarrary:%@",filterarrary);
//刪選第二位是i的
s = [nsstring stringwithformat:@"name like '?i*'"];
predicate = [nspredicate predicatewithformat:s];
filterarrary = [persons filteredarrayusingpredicate:predicate];
nslog(@"filterarrary:%@",filterarrary);
}return 0;
}
person.h
@property (nonatomic, copy) nsstring *name;
@property (nonatomic, assign) nsinteger age;
+ (id)personwithname:(nsstring *)name withage:(nsinteger)age;
person.m
+ (id)personwithname:(nsstring *)name withage:(nsinteger)age
- (nsstring *)description
- (void)dealloc
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