short floating point number format 短浮点数格式
short floating-point number format [计] 短浮点数格式
extended floating point number format [计] 扩充浮点数格式
The program expects to find a single floating-point number in ASCII format; any extraneous characters will be ignored.
程序期望查找ascii格式的单精度浮点数；任何无关的字符都将忽略。
Because internally, computers use a format (binary floating-point) that cannot accurately represent a number like 0.1, 0.2 or 0.3 at all.
因为在内部，计算机使用一种非精确的(二进制浮点数)形式表示诸如0.1,0.2,0.3之类的小数。
Converts the string representation of a number in a specified style and culture-specific format to its double-precision floating-point number equivalent.
使用指定样式和文化特性特定格式，将数字的字串表示转换为其对等的双精度浮点数。
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