aosfather/bingo_mvc: dd/manager.go; 5 LoC

Found a possible issue in [aosfather/bingo_mvc](https://www.github.com/aosfather/bingo_mvc) at [dd/manager.go](https://github.com/aosfather/bingo_mvc/blob/84fae08a986a4ff0b7a522982072d3fe149054aa/dd/manager.go#L75-L79)

Below is the message reported by the analyzer for this snippet of code. Beware that the analyzer only reports the first issue it finds, so please do not limit your consideration to the contents of the below message.

> reference to item is reassigned at line 76

[Click here to see the code in its original context.](https://github.com/aosfather/bingo_mvc/blob/84fae08a986a4ff0b7a522982072d3fe149054aa/dd/manager.go#L75-L79)

Click here to show the 5 line(s) of Go which triggered the analyzer.

```go
for _, item := range config.Dicts {
_dicts[item.Code]=&item
//将dict注册成为数据元素
AddDataElement(DataElement{Code:item.Code,Label: item.Label,DataType: "_string",Validater: validateByDict,ValidateExpr: item.Code,Convertor: "Dict",ConvertorExpr: item.Code})
}

```

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commit ID: 84fae08a986a4ff0b7a522982072d3fe149054aa