Leopard似乎不支持运算符@“％@ == [c]％@”。 那我该怎么用呢？

Question

the operator ==[c] like in @"%@ ==[c] %@" seems not supported on Leopard.

What operator should I use to compare strings with different casing ?

Thanks

Answer 1

You could try calling

- (NSComparisonResult)caseInsensitiveCompare:(NSString *)aString

Or another method might be using

[[string1 lowercaseString] isEqualToString:[string2 lowercaseString]];

Answer 2

我认为这将起作用： @"%@ LIKE[c] %@" 。

Answer 3

如果比较的左侧是属性名称，则需要使用％K说明符 。

@"%K ==[c] %@"