1.NSNumber *testNumber = @123;
NSPredicate *predicate = [NSPredicate predicateWithFormat:@"SELF = 123"];
if ([predicate evaluateWithObject:testNumber]) {
NSLog(@"testString:%@", testNumber);
}
2.NSNumber *testNumber = @123;
NSPredicate *predicate = [NSPredicate predicateWithFormat:@"SELF BETWEEN {100, 200}"];
if ([predicate evaluateWithObject:testNumber]) {
NSLog(@"testString:%@", testNumber);
} else {
NSLog(@"不符合條件");
}
3.NSArray *testArray = @[@1, @2, @3, @4, @5, @6];
NSPredicate *predicate = [NSPredicate predicateWithFormat:@"SELF > 2 && SELF < 5"];
NSArray *filterArray = [testArray filteredArrayUsingPredicate:predicate];
NSLog(@"filterArray:%@", filterArray);
4.NSArray *filterArray = @[@"ab", @"abc"];
NSArray *array = @[@"a", @"ab", @"abc", @"abcd"];
NSPredicate *predicate = [NSPredicate predicateWithFormat:@"NOT (SELF IN %@)", filterArray];
NSLog(@"%@", [array filteredArrayUsingPredicate:predicate]);
5.ZLPersonModel *sunnyzl = [ZLPersonModel personWithName:@"sunnyzl" age:29 sex:ZLPersonSexMale];
ZLPersonModel *jack = [ZLPersonModel personWithName:@"jack" age:22 sex:ZLPersonSexMale];
//? 首先我們來看一些簡單的使用
//? 1.判斷姓名是否是以s開頭的
NSPredicate *pred1 = [NSPredicate predicateWithFormat:@"name LIKE 's*'"];
//? 輸出為：sunnyzl:1, jack:0
NSLog(@"sunnyzl:%d, jack:%d", [pred1 evaluateWithObject:sunnyzl], [pred1 evaluateWithObject:jack]);
//? 2.判斷年齡是否大于25
NSPredicate *pred2 = [NSPredicate predicateWithFormat:@"age > 25"];
//? 輸出為：sunnyzl的年齡是否大于25：1, jack的年齡是否大于25：0
NSLog(@"sunnyzl的年齡是否大于25：%d, jack的年齡是否大于25：%d", [pred2 evaluateWithObject:sunnyzl], [pred2 evaluateWithObject:jack]);
6.- (BOOL)checkPhoneNumber:(NSString *)phoneNumber
{
NSString *regex = @"^[1][3-8]\\d{9}$";
NSPredicate *pred = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", regex];
return [pred evaluateWithObject:phoneNumber];
}
7.（有點(diǎn)瑕疵）- (BOOL)checkSpecialCharacter:(NSString *)string
{
NSString *regex = @"[`~!@#$^&*()=|{}':;',\\[\\].<>/?~！@#￥……&*（）——|{}【】‘；：”“'谜叹。燕酷，呆抑、夹孔？]";
NSPredicate *pred = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", regex];
return [pred evaluateWithObject:string];
}
8.NSMutableArray *arrayM = [@[@20, @40, @50, @30, @60, @70] mutableCopy];
//? 過濾大于50的值
NSPredicate *pred1 = [NSPredicate predicateWithFormat:@"SELF > 50"];
[arrayM filterUsingPredicate:pred1];
NSLog(@"arrayM:%@", arrayM);
NSArray *array = @[[ZLPersonModel personWithName:@"Jack" age:20 sex:ZLPersonSexMale],
[ZLPersonModel personWithName:@"Rose" age:22 sex:ZLPersonSexFamale],
[ZLPersonModel personWithName:@"Jackson" age:30 sex:ZLPersonSexMale],
[ZLPersonModel personWithName:@"Johnson" age:35 sex:ZLPersonSexMale]];
//? 要求取出包含‘son’的元素
NSPredicate *pred2 = [NSPredicate predicateWithFormat:@"name CONTAINS 'son'"];
NSArray *newArray = [array filteredArrayUsingPredicate:pred2];
NSLog(@"%@", newArray);
9.NSArray *filterArray = @[@"ab", @"abc"];
NSArray *array = @[@"a", @"ab", @"abc", @"abcd"];
NSPredicate *predicate = [NSPredicate predicateWithFormat:@"NOT (SELF IN %@)", filterArray];
NSLog(@"%@", [array filteredArrayUsingPredicate:predicate]);
10.NSArray *array = @[[ZLPersonModel personWithName:@"Jack" age:20 sex:ZLPersonSexMale],
[ZLPersonModel personWithName:@"Rose" age:22 sex:ZLPersonSexFamale],
[ZLPersonModel personWithName:@"Jackson" age:30 sex:ZLPersonSexMale],
[ZLPersonModel personWithName:@"Johnson" age:35 sex:ZLPersonSexMale]];
//? 定義一個(gè)property來存放屬性名办陷，定義一個(gè)value來存放值
NSString *property = @"name";
NSString *value = @"Jack";
//? 該謂詞的作用是如果元素中property屬性含有值value時(shí)就取出放入新的數(shù)組內(nèi)，這里是name包含Jack
NSPredicate *pred = [NSPredicate predicateWithFormat:@"%K CONTAINS %@", property, value];
NSArray *newArray = [array filteredArrayUsingPredicate:pred];
NSLog(@"newArray:%@", newArray);
//? 創(chuàng)建謂詞，屬性名改為age踊挠，要求這個(gè)age包含$VALUE字符串
NSPredicate *predTemp = [NSPredicate predicateWithFormat:@"%K > $VALUE", @"age"];
// 指定$SUBSTR的值為 25? ? 這里注釋中的$SUBSTR改為$VALUE
NSPredicate *pred1 = [predTemp predicateWithSubstitutionVariables:@{@"VALUE" : @25}];
NSArray *newArray1 = [array filteredArrayUsingPredicate:pred1];
NSLog(@"newArray1:%@", newArray1);
//? 修改 $SUBSTR的值為32，? 這里注釋中的SUBSTR改為$VALUE
NSPredicate *pred2 = [predTemp predicateWithSubstitutionVariables:@{@"VALUE" : @32}];
NSArray *newArray2 = [array filteredArrayUsingPredicate:pred2];
NSLog(@"newArray2:%@", newArray2);
