parameter-passing

问题 I am trying to pass dict arguments using the ssh command via the os module: os.system(f'ssh remote_host python -u - {dict1} {dict2} < local_script.py') I am getting an error: sh:line:0 syntax error near unexpected token (' What is the right syntax to pass dict as an argument? If I pass string instead of dict, it works fine. Any suggestions? 回答1: Use json and urlencode. import urllib.parse import json dict1_j = urllib.parse.quote(json.dumps(dict1)) dict2_j = urllib.parse.quote(json.dumps(dict2

问题 I am trying to pass dict arguments using the ssh command via the os module: os.system(f'ssh remote_host python -u - {dict1} {dict2} < local_script.py') I am getting an error: sh:line:0 syntax error near unexpected token (' What is the right syntax to pass dict as an argument? If I pass string instead of dict, it works fine. Any suggestions? 回答1: Use json and urlencode. import urllib.parse import json dict1_j = urllib.parse.quote(json.dumps(dict1)) dict2_j = urllib.parse.quote(json.dumps(dict2

问题 Context In C, I have a function which take an array as a parameter. This parameter is used as an output in this function. The output is always the same size. I would: make the required size clear for anyone reading the code (it will already be in the function comments, though), ideally the compilation to output a warning or an error so I can prevent problems at compile-time instead of run-time. A potential solution I found here: https://hamberg.no/erlend/posts/2013-02-18-static-array-indices

问题 Context In C, I have a function which take an array as a parameter. This parameter is used as an output in this function. The output is always the same size. I would: make the required size clear for anyone reading the code (it will already be in the function comments, though), ideally the compilation to output a warning or an error so I can prevent problems at compile-time instead of run-time. A potential solution I found here: https://hamberg.no/erlend/posts/2013-02-18-static-array-indices

问题 template <class T> void swap(T& a, T& b){ T tmp = a; a = b; b = tmp; } I am reading a book and it tells me that the code above will not work for arrays unless we overload the '=' operator. I don't understand why it shouldn't work though. Are we not switching around the pointers to the first index of the arrays? 回答1: First of all, if you pass arrays as arguments the type T will be deduced to be an array type, and that leads to problem as you can not assign an array only copy them. Then your

来源： https://stackoverflow.com/questions/55588765/pass-valuetuple-instead-of-arguments

来源： https://stackoverflow.com/questions/34242445/how-to-pass-parameters-to-modal-when-i-call-it-programmatically

来源： https://stackoverflow.com/questions/42448587/pass-values-to-function-further-down-the-call-stack

来源： https://stackoverflow.com/questions/34505261/how-to-pass-objects-method-as-a-parameter-in-javascript

来源： https://stackoverflow.com/questions/34505261/how-to-pass-objects-method-as-a-parameter-in-javascript