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来源： https://stackoverflow.com/questions/7179242/php-header-does-not-work

来源： https://stackoverflow.com/questions/56187791/how-to-set-cache-control-header-in-amazon-cloudfront

来源： https://stackoverflow.com/questions/56187791/how-to-set-cache-control-header-in-amazon-cloudfront

问题 This is my code inside myCode.h : #include <set> using namespace std; bool MyObjectComp(const MyObject& lhs, const MyObject& rhs) { return lhs.mTick < rhs.mTick; } typedef std::multiset<MyObject, MyObjectComp> MyObjectMultiSet; but it says that function MyObjectComp is not a type name. Where should I place it? 回答1: The template parameter for std::multiset expects a type, MyObjectComp is not a type but is instead a function name. You can either use decltype to get its type like typedef std:

问题 I have a file looking like # Comment 1 # Comment 2 # A B C 1 2 3 4 5 6 7 8 9 How to read it with python pandas module, so as the last line of comments can be interpreted as the columns titles ? I've tried pandas.read_table(file_path, header= 2 , comment='#' ) But the comment lines are eliminated first, thus the header line will be 7 8 9 回答1: You can do this manually: first read the comments, parse the column names, then call read_table : import itertools import pandas as pd def read_data(path

问题 I have a file looking like # Comment 1 # Comment 2 # A B C 1 2 3 4 5 6 7 8 9 How to read it with python pandas module, so as the last line of comments can be interpreted as the columns titles ? I've tried pandas.read_table(file_path, header= 2 , comment='#' ) But the comment lines are eliminated first, thus the header line will be 7 8 9 回答1: You can do this manually: first read the comments, parse the column names, then call read_table : import itertools import pandas as pd def read_data(path

问题 Closed . This question needs details or clarity. It is not currently accepting answers. Want to improve this question? Add details and clarify the problem by editing this post. Closed 3 days ago . Improve this question I wondered whether it is possible in C++ to do the same stuff like in Java. That means something like this: public class A { private A a1; private A a2; A getA1(){ return a1; } A getA2(){ return a2; } void setA1(A a1){ this.a1 = a1; } void setA2(A a2){ this.a2 = a2; } } Now I

问题 Closed . This question needs details or clarity. It is not currently accepting answers. Want to improve this question? Add details and clarify the problem by editing this post. Closed 3 days ago . Improve this question I wondered whether it is possible in C++ to do the same stuff like in Java. That means something like this: public class A { private A a1; private A a2; A getA1(){ return a1; } A getA2(){ return a2; } void setA1(A a1){ this.a1 = a1; } void setA2(A a2){ this.a2 = a2; } } Now I

问题 Closed . This question needs details or clarity. It is not currently accepting answers. Want to improve this question? Add details and clarify the problem by editing this post. Closed 3 days ago . Improve this question I wondered whether it is possible in C++ to do the same stuff like in Java. That means something like this: public class A { private A a1; private A a2; A getA1(){ return a1; } A getA2(){ return a2; } void setA1(A a1){ this.a1 = a1; } void setA2(A a2){ this.a2 = a2; } } Now I

问题 I was reading about immutable header and i came across with this article saying that: Cache-Control: max-age=365000000, immutable When a client supporting immutable sees this attribute it should assume that the resource, if unexpired, is unchanged on the server and therefore should not send a conditional revalidation for it (e.g. If-None-Match or If-Modified-Since) to check for updates. Correcting possible corruption (e.g. shift reload in Firefox) never uses conditional revalidation and still