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Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
39 lines
942 B
39 lines
942 B
<!DOCTYPE html> |
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<html lang="en"> |
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<head> |
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<meta charset="UTF-8"> |
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<title>3.姓名案例_计算属性实现</title> |
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<script type="text/javascript" src="../vue.js"></script> |
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</head> |
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<body> |
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<div id="root"> |
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姓：<input type="text" v-model="firstName"> <br> |
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名：<input type="text" v-model="lastName"> <br> |
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姓名： <span>{{fullName}}</span> |
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</div> |
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<script type="text/javascript"> |
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const vm = new Vue({ |
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el: '#root', |
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data: { |
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firstName: "张", |
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lastName: "三" |
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}, |
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computed: { |
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fullName: { |
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get() { |
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return this.firstName + '-' + this.lastName |
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}, |
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set(value){ |
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const arr = value.split('-') |
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this.firstName = arr[0] |
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this.lastName = arr[1] |
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} |
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} |
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} |
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}) |
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console.log(vm) |
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</script> |
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</body> |
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</html> |