vue简易计算器

蔚落 2021-07-24 13:23 529阅读 0赞

<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Document</title> <script src="./vue.js"></script> </head> <body> <div id="app"> <input type="text" v-model.number="num1" /> <select v-model="type"> <option value="+">+</option> <option value="-">-</option> <option value="*">*</option> <option value="/">-</option> </select> <input type="text" v-model .number="num2" /> <button @click="handleclick">=</button> <span>{ { result}}</span> </div> <script> const vm = new Vue({ 
            el: '#app', data: { 
                num1: 0,
                num2: 0,
                type: '+',
                result: 0
            }, methods: { 
                handleclick() { 
                    const {  type, num1, num2 } = this; switch (type) { 
                        case '+':
                            this.result = num1 + num2;
                            break;
                        case '-':
                            this.result = num1 - num2;
                            break;
                        case '*':
                            this.result = num1 * num2;
                            break;
                        case '/':
                            this.result = num1 / num2;
                            break;
                    }
                }
            }
        })
    </script>
</body>
</html>