OpenERP对象支持的字段类型有,基础类型:char, text, boolean, integer, float, date, time, datetime, binary:复杂类型:selection, function, related:关系类型:one2one, one2many, many2one, many2many.下面逐一说明. boolean: 布尔型(true, false) integer: 整数. float: 浮点型,如 'rate' : fields.float('