using namespace std co to znaczy

h>#include iostream>usingnamespacestd;//----------全屏/隐藏标题

ch[i ] = c; 从后往前遍历数组 for j=i-1 to j>=0 若为空格

cpp #include iostream> using namespace std; int main() { cout

using namespace std; void main() { int b=0; int c=0; cout

经实验验证修正对usingnamespacestd的认识

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