There is no myth. Let's talk about decimal's "blind eye" and decimal's blind eye.0x00 Preface
In the last article "compromise and trade-offs, deconstruct decimal operations in C #", many of my friends talked about the decimal type in C. In fact, the
SQL Server field type decimal (18,6) before the decimal point is a few?Admittedly, this is a very low-level problem ....Why do you ask such a low-level question?Because of this problem, an SP failed to perform a data import .... That bothered me for
Put C # in detail: compromise and trade-offs, deconstruct the decimal operation in C,Digress
Before the beginning of the text, I would like to thank the blog Park for providing this outstanding platform. I am honored to have won the Microsoft MVP
Original: SQL Server field type decimal (18,6) How many are before the decimal point? Remember the database SP bug handling onceSQL Server field type decimal (18,6) before the decimal point is a few?Admittedly, this is a very low-level problem
Explanation: mutual conversion of binary, octal, decimal, and hexadecimal values: in addition to the remainder of 2, the integers are arranged in reverse order, that is, each time an integer is divided by 2, and the remainder is the number on the
The conversion between decimal and binary
(1) Decimal conversion to binary, divided into integers and decimal parts
① integral number of parts
Method: In addition to 2, in reverse order, that is, each part of the integer divided by 2, the
In C #, Division does not retain the decimal point by default,
Decimal result = 100/1000; // result = 0;
The decimal point must be retained.
Decimal result = 100 m/1000;
M represents decimal.
What should I do if it is a variable? This
///price and quantity input control (only one decimal point can be entered, only two digits can be input, first digit cannot be a decimal point)////// KeyPressEventArgs e///TextBox public static void Keypressxs ( KeyPressEventArgs E, textbox
Format the float type. retain the first decimal point and the float decimal point.
1 "" exercise: 2. James's score has increased from 72 points last year to 85 points this year. Calculate the percentage point that James's score has improved. 3.
One, the conversion between decimal and binary (1) Decimal conversion to binary, divided into integers and fractional parts ① whole number of parts Methods: In addition to the 2 method, that is, each time the integer part divided by 2, the remainder
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