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NumberSigns

可用

Option for NumberForm giving the strings to use for negative and positive number signs

NumberSigns
NumberForm[{1234.567, -2345.678}, 5, NumberSigns -> {"-", "+"}] → NumberForm[{1234.567, -2345.678}, 5, NumberSigns -> {-, +}]PaddedForm[{1234.567, -2345.678}, 5, NumberSigns -> {"-", "+"}] → PaddedForm[{1234.567, -2345.678}, 5, NumberSigns -> {-, +}]ScientificForm[{1234.567, -2345.678}, 5, NumberSigns -> {"-", "+"}] → ScientificForm[{1234.567, -2345.678}, 5, NumberSigns -> {-, +}]
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SignPaddingNumberForm

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