Pagination.js
options: this.totalVisible = 2
注：‘this.totalVisble < 3’，只显示一个页码
options: this.totalVisible = 5 && this.control = false
注：‘this.totalVisble < 5’，只显示一个页码，不显示左右控制按钮
options: this.totalVisible = 5
注：‘this.totalVisble > 3 && this.totalvisible < 7’，显示定义数值个数的页码
options: this.totalVisible = 7
注：‘this.totalvisible > 7’，显示定义数值个数的页码
options: this.totalVisible = 8