attributes

问题 Using python, one can set an attribute of a instance via either of the two methods below: >>> class Foo(object): pass >>> a = Foo() >>> a.x = 1 >>> a.x 1 >>> setattr(a, 'b', 2) >>> a.b 2 One can also assign properties via the property decorator. >>> class Bar(object): @property def x(self): return 0 >>> a = Bar() >>> a.x 0 My question is, how can I assign a property to an instance? My intuition was to try something like this... >>> class Doo(object): pass >>> a = Doo() >>> def k(): return 0 >

问题 I'm trying to test if an attribute on an ancestor of an element not equal a string. Here is my XML... <aaa att="xyz"> <bbb> <ccc/> </bbb> </aaa> <aaa att="mno"> <bbb> <ccc/> </bbb> </aaa> If I'm acting on element ccc, I'm trying to test that its grandparent aaa @att doesn't equal "xyz". I currently have this... ancestor::aaa[not(contains(@att, 'xyz'))] Thanks! 回答1: Assuming that by saying an ancestor of an element you're referring to an element with child elements, this XPath expression

问题 I'm trying to test if an attribute on an ancestor of an element not equal a string. Here is my XML... <aaa att="xyz"> <bbb> <ccc/> </bbb> </aaa> <aaa att="mno"> <bbb> <ccc/> </bbb> </aaa> If I'm acting on element ccc, I'm trying to test that its grandparent aaa @att doesn't equal "xyz". I currently have this... ancestor::aaa[not(contains(@att, 'xyz'))] Thanks! 回答1: Assuming that by saying an ancestor of an element you're referring to an element with child elements, this XPath expression

问题 I'm trying to test if an attribute on an ancestor of an element not equal a string. Here is my XML... <aaa att="xyz"> <bbb> <ccc/> </bbb> </aaa> <aaa att="mno"> <bbb> <ccc/> </bbb> </aaa> If I'm acting on element ccc, I'm trying to test that its grandparent aaa @att doesn't equal "xyz". I currently have this... ancestor::aaa[not(contains(@att, 'xyz'))] Thanks! 回答1: Assuming that by saying an ancestor of an element you're referring to an element with child elements, this XPath expression

问题 I have 1 attributed string with multiple paragraph. I had given the FirstLineHeadIndent = 2.12. Now I want to give the FirstLineHeadIndent=0 to 1st paragraph and FirstLineHeadIndent=2 to 2nd paragraph in the attributed string. If I set the property like NSMutableParagraphStyle *paragraphStyle = [[NSMutableParagraphStyle alloc] init]; paragraphStyle.lineSpacing =Line_space; paragraphStyle.firstLineHeadIndent =2; paragraphStyle.headIndent =margin_space; paragraphStyle.tailIndent =-margin_space;

问题 I have 1 attributed string with multiple paragraph. I had given the FirstLineHeadIndent = 2.12. Now I want to give the FirstLineHeadIndent=0 to 1st paragraph and FirstLineHeadIndent=2 to 2nd paragraph in the attributed string. If I set the property like NSMutableParagraphStyle *paragraphStyle = [[NSMutableParagraphStyle alloc] init]; paragraphStyle.lineSpacing =Line_space; paragraphStyle.firstLineHeadIndent =2; paragraphStyle.headIndent =margin_space; paragraphStyle.tailIndent =-margin_space;

问题 I have 1 attributed string with multiple paragraph. I had given the FirstLineHeadIndent = 2.12. Now I want to give the FirstLineHeadIndent=0 to 1st paragraph and FirstLineHeadIndent=2 to 2nd paragraph in the attributed string. If I set the property like NSMutableParagraphStyle *paragraphStyle = [[NSMutableParagraphStyle alloc] init]; paragraphStyle.lineSpacing =Line_space; paragraphStyle.firstLineHeadIndent =2; paragraphStyle.headIndent =margin_space; paragraphStyle.tailIndent =-margin_space;

问题 Is this valid code with newer Delphi versions? // handle HTTP request "example.com/products?ProductID=123" procedure TMyRESTfulService.HandleRequest([QueryParam] ProductID: string); In this example, the argument "ProductID" is attributed with [QueryParam] . If this is valid code in Delphi, there must also be a way to write RTTI based code to find the attributed argument type information. See my previous question Which language elements can be annotated using attributes language feature of

问题 Is this valid code with newer Delphi versions? // handle HTTP request "example.com/products?ProductID=123" procedure TMyRESTfulService.HandleRequest([QueryParam] ProductID: string); In this example, the argument "ProductID" is attributed with [QueryParam] . If this is valid code in Delphi, there must also be a way to write RTTI based code to find the attributed argument type information. See my previous question Which language elements can be annotated using attributes language feature of

问题 Is this valid code with newer Delphi versions? // handle HTTP request "example.com/products?ProductID=123" procedure TMyRESTfulService.HandleRequest([QueryParam] ProductID: string); In this example, the argument "ProductID" is attributed with [QueryParam] . If this is valid code in Delphi, there must also be a way to write RTTI based code to find the attributed argument type information. See my previous question Which language elements can be annotated using attributes language feature of