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並前往https://qastack.cn/programming/56704164/angular-viewchild-error-expected-2-arguments-but-got-1

角@ViewChild（）错误：预期有2个参数，但得到1个

import { Component, OnInit, ElementRef, ViewChild, Output, EventEmitter } from '@angular/core'; import { Ingredient } from 'src/app/shared/ingredient.model' ...

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