Specifier Type Format Output (Passed Double 1.42) Output (Passed Int -12400) c Currency {0:c} $1.42 -$12,400 d Decimal {0:d} System.FormatException -12400 e Scientific {0:e} 1.420000e+000 -1.240000e+004 f Fixed point {0:f} 1.42 -12400.00 g General {0:g} 1.42 -12400 n Number with commas for thousands {0:n} 1.42 -12,400 r Round trippable {0:r} 1.42 System.FormatException x Hexadecimal {0:x4} System.FormatException cf90 {0:d} 日期只显示年月日 {0:yyyy-mm-dd} 按格式显示年月日 样式取决于 Web.config 中的设置 {0:c} 或 {0:£0,000.00} 货币样式 标准英国货币样式
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