<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Vue 子组件调用父组件 $emit</title>
</head>
<body>
<div ,
data: {
items: goods
},
methods: {
//将指定商品数量
handleUpdate: function(index, count) {
this.items[index].count = count;
}
},
computed: {
totalCount: function() {
var sum = 0;
for (var i = 0; i < this.items.length; i++) {
sum += this.items[i].count;
}
return sum;
}
}
})
</script>
</body>
</html>
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