为什么return data 之后，显示data is not defined？

时间：2017-06-17 来源：作者：

= list[i].lastChild.innerHTML; data[i] = [city,num]; } alert(data.length); //7 return data; } alert(data.length); //data is not defined ...

= list[i].lastChild.innerHTML; data[i] = [city,num]; } alert(data.length); //7 return data; } alert(data.length); //data is not defined ...

= list[i].lastChild.innerHTML; data[i] = [city,num]; } alert(data.length); //7 return data; } alert(data.length); //data is not defined ...

= list[i].lastChild.innerHTML; data[i] = [city,num]; } alert(data.length); //7 return data; } alert(data.length); //data is not defined ...

= list[i].lastChild.innerHTML; data[i] = [city,num]; } alert(data.length); //7 return data; } alert(data.length); //data is not defined ...

= list[i].lastChild.innerHTML; data[i] = [city,num]; } alert(data.length); //7 return data; } alert(data.length); //data is not defined ...

= list[i].lastChild.innerHTML; data[i] = [city,num]; } alert(data.length); //7 return data; } alert(data.length); //data is not defined ...

= list[i].lastChild.innerHTML; data[i] = [city,num]; } alert(data.length); //7 return data; } alert(data.length); //data is not defined ...

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