syntax-error

问题 What is the difference between the two methods? Sometimes when I get compile-time errors complaining that the compiler does not recognize some class types in function signatures, then if I add the keyword "class" in front of the respective variables, it can always solve this kind of compile-time errors. For example, if the compiler does not recognize the type Client in void recv( Client * c ) then if I change it to void recv( class Client * c ) the problem is solved. I am sorry that I cannot

问题 What is the difference between the two methods? Sometimes when I get compile-time errors complaining that the compiler does not recognize some class types in function signatures, then if I add the keyword "class" in front of the respective variables, it can always solve this kind of compile-time errors. For example, if the compiler does not recognize the type Client in void recv( Client * c ) then if I change it to void recv( class Client * c ) the problem is solved. I am sorry that I cannot

问题 I have the folowing attribute on a div: ng-show="state.name === 'index'" . I've also tried ng-show='state.name === "index" , but I keep getting the following error: Syntax Error: Token ' "index" ' is an unexpected token at column 16 of the expression [state.name === "index"] starting at ["index"] . Why? 回答1: ng-show takes an "AngularJS statement." This type of statement only has an == operator, but this operator behaves like === . It's a bit confusing, but handy in that you cannot shoot

问题 hey I am newbie to ruby on rails and I am trying run a simple program from this blog and facing lot of problems error. http://goodbadtech.com/2009/05/13/ruby-on-rails-import-csv-data-into-database/ Could not able to figure out the solution. Here is the error log. /home/jeevan/.rvm/gems/ruby-1.9.2-p290/gems/activesupport-3.1.1/lib/active_support/dependencies.rb:234:in `load': /home/jeevan/csv/config/routes.rb:64: syntax error, unexpected keyword_end, expecting $end (SyntaxError) from /home

问题 I believe, the error message not related to Serilog specifically, but is rather because of the code/assembly/package specific structure/modifiers etc. So, the issue is that Resharper shows the error (and the code (from assembly referenced) is not accessible for navigation to) when Visual Studio navigates (by Go to Definition command) to metadata and compiles the code well (including, showing the method description successfully as well). The method is defined in assembly as follows: namespace

问题 This question is unlikely to help any future visitors; it is only relevant to a small geographic area, a specific moment in time, or an extraordinarily narrow situation that is not generally applicable to the worldwide audience of the internet. For help making this question more broadly applicable, visit the help center. Closed 6 years ago . I am getting the error: SyntaxError: missing ) after argument list With this javascript: var nav = document.getElementsByClassName('nav-coll'); for (var

问题 This question already has answers here : Python try…except comma vs 'as' in except (5 answers) Closed 5 years ago . I've got a SyntaxError on my except: try: opts, args = getopt.getopt(sys.argv[1:], 'P:D:H:d:u:p:nvhmJi:c:Ml:TB:', ['host=', 'port=', 'directory=', 'user=', 'password=', 'daemon=', 'noauth', 'help', 'verbose', 'mysql', 'icounter=', 'config=', 'nolock', 'nomime', 'loglevel', 'noiter', 'baseurl=']) except getopt.GetoptError, e: print usage print '>>>> ERROR: %s' % str(e) sys.exit(2

问题 The code i have is: for key in keys: cursor.execute(""" ALTER TABLE segment_table ADD %s VARCHAR(40) """, key) I get a error telling me my syntax is wrong. When I replace the %s with a actual string the syntax error goes away. for key in keys: cursor.execute(""" ALTER TABLE segment_table ADD myColumn VARCHAR(40) """) Any help is appreciated. 回答1: Shouldn't you do the replacement before feeding it? query = "ALTER TABLE segment_table ADD %s VARCHAR(40)" % (key) cursor.execute( query ) 回答2:

问题 This question is unlikely to help any future visitors; it is only relevant to a small geographic area, a specific moment in time, or an extraordinarily narrow situation that is not generally applicable to the worldwide audience of the internet. For help making this question more broadly applicable, visit the help center. Closed 6 years ago . I am getting the following error syntax error, unexpected T_CONSTANT_ENCAPSED_STRING on this line $this->email->subject($this->core_model->companyDetails

问题 I just started learning PL/SQL and I'm not sure how to create a procedure. The logic seems about right but I think there's some syntactical mistake in the first line. Here's my code:- CREATE OR REPLACE PROCEDURE ReverseOf(input IN varchar2(50)) IS DECLARE reverse varchar2(50); BEGIN FOR i in reverse 1..length(input) LOOP reverse := reverse||''||substr(input, i, 1); END LOOP; dbms_output.put_line(reverse); END; / 回答1: Two things - you shouldn't specify the datatype size in procedure's/function