Many Microsoft run-time library functions require floating-point support from a math coprocessor or from the floating-point libraries that accompany the compiler. Floating-point support functions are loaded only if required. When you use a floating-point type specifier in the format string of a cal...
Many Microsoft run-time library functions require floating-point support from a math coprocessor or from the floating-point libraries that accompany the compiler. Floating-point support functions are loaded only if required. When you use a floating-point type specifier in the format string of a cal...
self.orderCost.text = [NSStringstringWithFormat:@"%.1f元",self.order.cost.floatValue]; %.1f 表示小数点一位,%.2f 表示小数点2位,依次类推. 1. 格式定义 The format specifiers supported by the NSString formatting methods and CFString formatting functions follow the IEEE printf specification; the ...
In order to force C++ to display our floating-point numbers in thescientificformat regardless of the size of the number, we use the format specifierscientificinside ofcout. doublenum =3.25;// ex = 325 X (10 ^ 25)doubleex =325E25;// using scientific formatcout<< scientific << num;cout<...
The following example illustrates the use of %ld to format an NSInteger and the use of a cast. 1 2 NSInteger i=42; printf("%ld\n",(long)i); In addition to the considerations mentioned in Table 2, there is one extra case with scanning: you must distinguish the types for float and ...
both floating-point types that existed when C was created can use the same%fformat specifier, but...
publicstringToString(IFormatProvider? provider); Параметры IFormatProvider Возвращаемоезначение provider. Реализации ToString(IFormatProvider) Примеры Вследующемпримерепоказаностроковоепредст...
FormatException s 不以有效格式表示数字。 OverflowException 仅.NET Framework 和 .NET Core 2.2 及更低版本:s 表示小于 double.MinValue 或大于 Double.MaxValue的数字。 ArgumentException style 不是NumberStyles 值。 -或- style 包括AllowHexSpecifier 值。 示例 以下示例使用 Parse(String, NumberStyles) ...
ToString(String, IFormatProvider) 示例 以下示例使用多个不同区域性的每个受支持的标准数字格式说明符显示一个 Double 值。 C# 复制 运行 double value = 16325.62901; string specifier; CultureInfo culture; // Use standard numeric format specifiers. specifier = "G"; culture = CultureInfo.CreateSpecific...
ToString(String, IFormatProvider) 示例 以下示例使用多个不同区域性的每个受支持的标准数字格式说明符显示一个 Double 值。 C# 复制 运行 double value = 16325.62901; string specifier; CultureInfo culture; // Use standard numeric format specifiers. specifier = "G"; culture = CultureInfo.CreateSpecific...