为什么我错了，哪位大佬帮忙看看？

lyh098 仙辞 2024-02-04 9:24:17 5

#include <bits/stdc++.h> using namespace std; int main() { int a, b; cin >> a >> b; if (a = b * 4) cout << "Sao Multiplos"; else cout << "Nao sao Multiplos"; }