NSPredicate 的保留字区分大小写吗？
are NSPredicate's reserved words case sensitive?
来自苹果文档：
这两个谓词给我相同的结果：
大写的 SELF：
NSPredicate *predicate = [NSPredicate predicateWithFormat: @"SELF.userType != %@", typeStr];
小写的自我：
NSPredicate *predicate = [NSPredicate predicateWithFormat: @"self.userType != %@", typeStr];
保留字是否区分大小写？
见Predicate Format String Syntax
"The predicate string parser is whitespace insensitive, case insensitive with respect to keywords, and supports nested parenthetical expressions."
来自苹果文档：
这两个谓词给我相同的结果：
大写的 SELF：
NSPredicate *predicate = [NSPredicate predicateWithFormat: @"SELF.userType != %@", typeStr];
小写的自我：
NSPredicate *predicate = [NSPredicate predicateWithFormat: @"self.userType != %@", typeStr];
保留字是否区分大小写？
见Predicate Format String Syntax "The predicate string parser is whitespace insensitive, case insensitive with respect to keywords, and supports nested parenthetical expressions."