定义对任意实数x,以[x]表示不超过x的最大整数,称为x的整数部分.[x]≤x,故x-[x]≥0,称x-[x]为x的小数部分,记作{x}.函数y=[x]称为高斯函数,也叫取整函数,是重要的数论函数之一.含[x]方程的类型很多,各类数学竞赛中都有相关的题,本文对常见的几种方程类型的解法进行总结,供大家参考. Definition of any real number x, [x] represents the largest integer not exceeding x, called the integer part of x. [x] ≤ x, so x-[x] ≥ 0, said x-[x] is the decimal of x The part, denoted as {x}. The function y=[x] is called a Gaussian function, also called an integer function, and is one of the important number theory functions. There are many types of equations that contain the [x] equation. In this paper, this article summarizes common solutions for several types of equations for your reference.