RobotFramework做自动化中，能定位到iFrame里面，怎么在iFrame里面输入文字？

01.描述

在RobotFramework中，能定位到iFrame里面，怎么在iFrame里面输入文字。

如下图：

02.遇到的问题

基本上，不管什么原因的错误，我都记录下来了。

------------------------------------------------------------------------------
帖子内容                                                              | FAIL |
Element with locator 'Xpath=//iframe[contains(@id,'ueditor_0')]' not found.
------------------------------------------------------------------------------

------------------------------------------------------------------------------
帖子内容                                                              | FAIL |
Element with locator 'id=ueditor_0' not found.
------------------------------------------------------------------------------

------------------------------------------------------------------------------
帖子内容                                                              | FAIL |
InvalidElementStateException: Message: invalid element state
(Session info: chrome=83.0.4103.61)
------------------------------------------------------------------------------

帖子内容                                                              | FAIL |
InvalidSelectorException: Message: invalid selector: Unable to locate an element with the xpath expression /html/body'] because of the following error:
SyntaxError: Failed to execute 'evaluate' on 'Document': The string '/html/body']' is not a valid XPath expression.
(Session info: chrome=83.0.4103.61)
------------------------------------------------------------------------------

03.解决

我是用谷歌插件Xpath Helper定位iFrame中id="ueditor_0"，图中黄色区域是定位的范围。

    def create_variables(self):
        variables = {
            '''此处部分省略，和iFrame没有关系'''
            "${selectFrame}":"Xpath=/html/body",    # 先进入iFrame中
            "${content}": "id:ueditor_0",           # 在找到iFrame中的id
        }
    def teststeps(self):
        '''此处部分省略，和iFrame没有关系'''
        test_05 = self.suite.tests.create("帖子内容")
        # 进入iFrame中
        test_05.keywords.create("Select Frame", args=["${content}"])
        # 找到iFrame的id，录入文字
        test_05.keywords.create("Input Text", args=["${selectFrame}","帖子"])