java - 按钮 setText 未显示 '&'

Question

我正在使用 org.eclipse.swt.widgets.Button 和 setText 方法。

我正在做，

myButton.setText("A & B");

但是，& 符号不会显示。

我已经尝试过了，

myButton.setText("A \\& B");
myButton.setText("A '&' B");
myButton.setText("A \& B"); \\not allowed

但它们都不起作用。

Answer 1

#setText中有明确说明文档，

Mnemonics are indicated by an '&' that causes the next character to be the mnemonic. When the user presses a key sequence that matches the mnemonic, a selection event occurs. On most platforms, the mnemonic appears underlined but may be emphasized in a platform specific manner. The mnemonic indicator character '&' can be escaped by doubling it in the string, causing a single '&' to be displayed.

所以应该是这样的，

myButton.setText("A && B");