48 lines
753 B
Go
48 lines
753 B
Go
package convx
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import (
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"errors"
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"strconv"
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)
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// interface 转 int
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func ToInt(val interface{}) (i int, err error) {
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switch v := val.(type) {
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case nil:
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return 0, nil
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case string:
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return strconv.Atoi(v)
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case float32:
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return int(v), nil
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case float64:
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return int(v), nil
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case int:
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return v, nil
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case int8:
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return int(v), nil
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case int16:
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return int(v), nil
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case int32:
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return int(v), nil
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case int64:
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return int(v), nil
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case uint:
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return int(v), nil
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case uint8:
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return int(v), nil
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case uint32:
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return int(v), nil
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case uint64:
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return int(v), nil
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case bool:
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if v {
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return 1, nil
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} else {
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return 0, nil
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}
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}
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return 0, errors.New("can not convert to int")
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}
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