某些IDE控制臺一閃而過怎么辦

Tech-d 2016-02-14

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Problem 1: When executing a program from the IDE, the console window blinks and then closes immediately.

Answer 1: Some compilers (eg. Bloodshed’s Dev C++) don’t automatically pause the console screen after the program has finished executing. If this is the case with your compiler, the following two steps will fix your problem:

First, add the following line near the top of your program:

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#include <iostream>

Second, add the following code at the end of the main() function (right before the return statement):

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std::cin.clear(); // reset any error flags
std::cin.ignore(32767, '\n'); // ignore any characters in the input buffer until we find an enter character
std::cin.get(); // get one more char from the user

This will cause your program to wait for you to press a key before continuing, which will give you time to examine your program’s output before your compiler closes the console window.

Other solutions, such as the commonly suggested system("pause") solution may only work on certain operating systems and should be avoided.

Note: Visual Studio will not pause at the end of a console application if it is run with debugging (Debug Menu->Start Debugging). If you want it to pause, you can either use the code solution above, or run your program without debugging (Debug Menu->Start Without Debugging).