How does CString.Format control the number of bits?

16647362xx

"% m.nf", represented by at least m digits, the number of decimal places occupies n digits (fixed n digits, less than 0),
% 5.2f, limited to only 2 digits after the decimal point, and at least 3 digits before the decimal point, if it exceeds 3, normal digits are displayed
float f = 1234.456;
CString str;
str.Format ("% 5.2f", f);
Result: 1234.45
str.Format ("% 3.2f", f);
Result: 1234.45
str.Format ("% 5.1f", f);
Results: 1234.4

血色占卜师

% 5.2f, limited to only 2 digits after the decimal point, at least 2 digits before the decimal point (the decimal point should occupy one digit), if it exceeds 3, it displays normal digits, and if it is less than three digits, it starts with Spaces
I tried n times and came to this conclusion

血色占卜师

% 5.2f, limited to only 2 digits after the decimal point, at least 2 digits before the decimal point (the decimal point must occupy one digit), if it exceeds 2, it displays the normal digits, and if it is less than 2 digits, the Spaces
I tried n times and came to this conclusion

zhoudaj

This is similar to printf and scanf.