7.2What does f mean in c language?

7.2f is the floating-point format specifier in C language, which is used to output a floating-point number with a length of 7 characters, in which 2 significant digits are retained after the decimal point.

7.2f What does it mean in C language?

7.2f is the floating-point number format specifier in C language. It specifies the output of a floating-point number with a length of 7 characters, including 2 significant digits after the decimal point.

Syntax of format specifier:

• %
• Type: d, i, u, o, x, f, e, g
• Modifier: Length: h, l, ll; Precision: .

Detailed explanation:

• ##7 :Specifies that the total length of the output is 7 characters.
• .：Decimal point.
• 2: Retain 2 significant figures after the decimal point.
• f: Floating point type.

Example:

<code class="c">#include <stdio.h>

int main() {
    float num = 3.1415926;
    printf("浮点数: %.2f\n", num);
    return 0;
}</code>

Output:

<code>浮点数: 3.14</code>

In this example, the %7.2f format specifier outputs the floating point number num as A string of 7 characters in length with 2 significant digits after the decimal point, so the output is "3.14".

The above is the detailed content of 7.2What does f mean in c language?. For more information, please follow other related articles on the PHP Chinese website!