//实例一:
let name = 'huoweNet'
name.charAt(0).toUpperCase() + name.slice(1)
//实例二:
let name = 'huoweNet'
name.slice(0, 1).toUpperCase() + name.slice(1)
//实例三:
let name = 'huoweNet'
name.substring(0, 1).toUpperCase() + name.substring(1)
//实例一:
let name = 'huoweNet'
name.charAt(0).toUpperCase() + name.slice(1)
//实例二:
let name = 'huoweNet'
name.slice(0, 1).toUpperCase() + name.slice(1)
//实例三:
let name = 'huoweNet'
name.substring(0, 1).toUpperCase() + name.substring(1)