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2年10月21天

牛客网华为机测-6-取近似值

方法1:使用round()函数#include <iostream>#include <math.h>using namespace std;int main(){ float a; cin >> a; cout << round(a) << endl;}fix朝零方向取整,如fix(-1.3)...

如何在Golang中返回错误?

In Golang, we return errors explicitly using the return statement. This contrasts with the exceptions used in languages like java, python. The approach in Golang to makes it easy to see which function...

mysql怎么查看表的储存引擎

1、查看mysql提供的引擎。12345678910111213141516MariaDB[(none)]>showengines;+--------------------+---------+-------------------------------------------------...