studyGolang 网启动异常

**`# service`** **`src\service\data.go:20: undefined: model`** **`src\service\data.go:26: undefined: model`** `src\service\data.go:34: undefined: model`** `src\service\data.go:39: undefined: model` `src\service\data.go:57: undefined: model` `src\service\data.go:85: undefined: model` `src\service\data.go:100: undefined: model` `src\service\data.go:114: undefined: model` `src\service\data.go:120: undefined: model` `src\service\data.go:215: undefined: model` `src\service\data.go:34: too many errors` `finished`