c# - 字符串插值中的变量对齐组件

Question

alignment component是这个例子中的-20:

$"{value, -20}"

有没有办法制作这样的内插字符串:

$"{值，对齐}"

alignment 是变量吗？

Answer 1

不幸的是，alignment 不能是一个变量。 alignment 必须是常量表达式。这是来自 docs 的相关部分

alignment: The constant expression whose value defines the minimum number of characters in the string representation of the result of the interpolated expression. If positive, the string representation is right-aligned; if negative, it's left-aligned. For more information, see Alignment Component.