如果 unity_variable 等于 true，我想显示一个选择框，如果不是 unity_variable 等于 false，我想显示一个选择框
我试过这个：
<div ng-if="question.unity_variable == true">
<select>
<option data-ng-repeat="unit in question.unity">{{unit.value}}</option>
</select>
</div>
<div ng-if="question.unity_variable == false || question.unity_variable == ''">
{{question.unity}}
</div>
还有这个 ：
<div ng-show="question.unity_variable == true" ng-hide="question.unity_variable == false || question.unity_variable == ''">
<select>
<option data-ng-repeat="unit in question.unity">{{unit.value}}</option>
</select>
</div>
<div ng-show="question.unity_variable == false || question.unity_variable == ''">
{{question.unity}}
</div>
因此，如果我没有为每个问题设置一个统一的选择框或显示两次但不尊重条件的 ng-show...请帮助找出我的错误！
编辑 ：
我的 Json 看起来像这样，用于显示控件以构建表单：
{"id": "01",
"questions": [
{"name": "confidential data", "dbcolumn":"confidential data", "control": "input", "default_value": "", "unity": [{"value": "mmol/l"}, {"value": "autre"}], "unity_variable": true, "isnull": 0, "size":"180px", "data_type":"number", "max_length": 3},
{"name": "confidential data", "dbcolumn":"confidential data", "control": "input", "default_value": "", "unity": "", "isnull": 1, "size":"180px", "data_type":"number", "max_length": 2},
{"name": "confidential data", "dbcolumn":"confidential data","control": "select", "default_value": [{"name":"Femme", "value": "Femme"}, {"name":"Homme", "value": "Homme"}], "unity": "", "isnull": 0, "size":"196px", "data_type":"string"}
]
}
我的html代码是：
<table style="display: inline-block; float: left; max-width: 510px;">
<tr data-ng-repeat="question in group.questions">
<td>{{question.name}}</td>
<td>
<div ng-switch on="question.control" style="display: inline-block;">
<div ng-switch-when="input">
<input type="text" style="width: {{ question.size }};" data-isnull="{{question.isnull}}" name="{{question.dbcolumn}}" id="{{question.dbcolumn}}" placeholder="{{question.default_value}}" maxlength="{{question.max_length}}" />
</div>
<div ng-switch-when="textarea">
<textarea style="width: {{ question.size }};" data-isnull="{{question.isnull}}" name="{{question.dbcolumn}}" id="{{question.dbcolumn}}" placeholder="{{question.default_value}}"></textarea>
</div>
<div ng-switch-when="checkbox">
<input type="checkbox" data-isnull="{{question.isnull}}" name="{{question.dbcolumn}}" id="{{question.dbcolumn}}" />{{question.default_value}}
</div>
<div ng-switch-when="select">
<select style="width: {{ question.size }};" data-isnull="{{question.isnull}}" name="{{question.dbcolumn}}" id="{{question.dbcolumn}}">
<option data-ng-repeat="choice in question.default_value" value="{{choice.value}}">{{choice.name}}</option>
</select>
</div>
<div ng-switch-when="p">
<p style="width: {{ question.size }};" data-isnull="{{question.isnull}}" name="{{question.dbcolumn}}" id="{{question.dbcolumn}}"><b>{{question.default_value}}</b></p>
</div>
<div ng-switch-default>
<!-- default action -->
</div>
</div>
</td>
<td>
<div ng-if="question.unity_variable == true">
<select>
<option data-ng-repeat="unit in question.unity">{{unit.value}}</option>
</select>
</div>
<div ng-if="question.unity_variable == false || question.unity_variable == ''"> {{question.unity}} </div>
</td>
</tr>
如果我只尝试简单的代码：
<div ng-if="1 == 1">true</div>
<div ng-if="1 == 2">false</div>
结果告诉我真假，所以我有一个语法错误