Method front

javascript/08_stack/SampleBrowser.js:30–38

()

    }
    // 前进
    front() {
        const value = this.backStack.pop()
        if (value !== -1) {
            this.normalStack.push(value)
            this.displayAllStack()
        } else {
            console.log('无法前进')
        }
    }
    // 打印栈内数据
    displayAllStack() {
        console.log('---后退页面---')