输入字符 [计] input character
- 从带格式字符串中清除所有输入字符。
Clears all the input characters from the formatted string. - 在派生类中重写后,此方法对回退缓冲区进行准备,以处理指定的输入字符。
Provides a buffer that allows a fallback handler to return an alternate string to an encoder when it cannot encode an input character. - 例如,当您在具有下拉显示最流行搜索条的搜索框中输入字符时,最开始显示的都是用户输入过的字符(如图 1所示)。
For example, when you type a string the drop down is populated with a list of popular search terms, all of which begin with the String typed by the user (as shown in Figure 1).
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