zhaoxj
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zhaoxj
在执行时,出现响应值为undefined,console.log(err)显示为: { [Error: connect ECONNREFUSED 42.121.252.58:80] code: 'ECONNREFUSED', errno: 'ECONNREFUSED', syscall: 'connect', address: '42.121.252.58', port: 80, response: undefined } 试着用http://localhost:3000/,127.0.0.1:3000,和本机的IP地址访问,都是这个结果,但是ping 127.0.0.1能ping通。