C++ user input, judgment statements and how to use switch
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User input
Cout is used to output (print) the value. You will now use cin to get user input.
Cin is a predefined variable that can be read from the keyboard using the extract operator (> >).
In the following example, the user can enter a number that is stored in the variable x. Then we output the value x:
# include using namespace std; int main () {int x = 0; cout > x; / / Get user input from the keyboard cout
