Think 2 when you are idle (' + ' is equivalent to the number 0 or the character 0)

/**********************************************************************      * *   Copyright (c) 2015,wk Studios    * *   Filename:  A.h  * *   COMPILER:GCC  VC 6.0     * *   author:wk      * *   time:2015 6 7  * * * * * * * * * /  #include <iostream>using namespace Std;void Main () {char a[100]={' 0 ', 48,48,0,0, ' 0 '};char b[]={' 0 ', 48,48,0,0, ' 0 '};char c[]={' 0 ', ' 0 '};char d[]={0};// Note that the number 0 differs from the character ' 0 '//' + ', which is equivalent to the number 0 instead of the character 0cout<<sizeof (a) <<endl;cout<<strlen (a) <<endl;cout< <sizeof (b) <<endl;cout<<strlen (b) <<endl;cout<<sizeof (c) <<endl;cout<< Strlen (c) <<endl;cout<<sizeof (d) <<endl;cout<<strlen (d) <<endl;

Operation Result:

100

3

6

3

2

7

1

0

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Think 2 when you are idle (' + ' is equivalent to the number 0 or the character 0)