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什么是 C++ 中的局部变量?
在函数或代码块内声明的变量是局部变量。它们只能由该函数或代码块内的语句使用。局部变量本身对函数是不可知的。
示例
#include <iostream> using namespace std; int main () { int a, b; int c; a = 10; b = 20; c = a + b; cout << c; return 0; }
输出
将给出如下输出 −
30
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