Switch case and if

Case

The switch case statement is occasionally used in programming, and there are two errors in the handling of case statements, which are summarized as follows:

1 case must be constant, cannot use ' < ' or ' > ' This logical operation after 2 case if ' | | ' or ' && ' logical operation, then the actual is 1 or 0#include <iostream>using namespace std;int main (int argc, char * argv[]) {    int i;< c1/>cin>>i;    switch (i)    {case        :            cout<<i<<endl;            break;        Case ' a ':            cout<<i<<endl;            break;        Default:            cout<< "Hello" <<endl;    }    return 0;}

　　

If

There are two main errors that can occur during programming using the IF process:

1Determine logical errors, such as if (i=0)2 ifElseIf ElseIf only executes one if or one does not perform # include<iostream>using namespacestd;intMainintargcChar*argv[]) {    inti; CIN>>i; if(i==1) cout<<i<<Endl; Else if(i>0) cout<<i+1<<Endl; Else if(i==0) cout<<i<<Endl; return 0;}

Switch case and if