The character search method divides each word into four corners. Each corner determines a number, and then all words are based on the size of four digits composed of four numbersSequential arrangement。It divides the pen shapes of Chinese characters into ten categories - head, horizontal, vertical, dot, fork, insert, square, corner, eight and small, which are respectively represented by numbers 0 to 9.The pen shapes at the four corners of each word are numbered in the order of their positions: top left, top right, bottom left, and bottom right.
When searching for a word, search for the word according to the size of four digits composed of four numbers.In order to avoid too many identical numbers, take another number for each word in addition to four numbersAttached No。
The four corner number searching method is fast and simple, but it is difficult to learn some Chinese characters because the four corners are not easy to recognize the pen shape[1]。
Press (1) top left corner (2) top right corner (3) leftLower corner(4) The order of the lower right corner is the number of the four corners.For example, for the end, first take the upper left corner 0, then take the upper right corner 2, then take the lower left corner 1, and finally take the lower right corner 2. End=0212.
method
(1) One canAngle bisectionTake number.For example, there is one stroke on the left, taking 2 from the top and 7 from the bottom.
(2) The upper and lower paragraphs of a pen and other pens form two pen shapes, and are marked in two corners.For example: water, on the left, take 1 from the top and 9 from the bottom.
(3) If the pen shape of the lower corner is at one corner, the number shall be taken according to the actual position, and the missing corner shall be 0.For example: envy, lack in the lower right corner, take 0.
(4) For the three types of characters with "Kou, Men and Piao" on the outside, the left and right lower corners should be changed to the inner ones.Example: Tian=6040.
(5) A pen shape, the front corner has been used,Posterior hornUse as 0 again.For example: Wang, the upper left corner is one horizontal, and the value is 1;The upper right corner is taken as 0 because it has been used previously.
Attached No
（1）Four-Corner SystemWhen there are many words with the same code, take a pen shape near the upper right lower corner (the fourth corner) to makeAttached No, if this pen shape has been used in the upper right corner, it is 0.
(2) Words with the same number of four corners and the attached number shall be counted according to the number of horizontal strokes contained in each wordSequential arrangement。
be careful
(1) If there are two single strokes or one single stroke and one multiple strokes in the corner, the leftmost orRightmostThe pen shape of.
(2) If there are two duplicate pens available, the higher duplicate pen is selected in the upper corner and the lower duplicate pen is selected in the lower corner.
(3) If the pen starts in the middle and there is another pen in the lower corner, take his pen as the lower corner, but if the pen starts on the left, take the pen as the corner.
Pithy formula
One horizontal, one vertical, two three points,
Cross four, insert five, square six,
Seventy eight eight nine is small,
There is a change from horizontal to odd.
Example
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For example, the upper left is a fork=4;Upper right is mouth=6;The lower left is a fork=4;The lower right is the mouth, but it has been used by the upper right=0;So the four corner number of "Ru" is 4640.
Some special words are easy to causeDuplicate codeFor example, "Kou" and "Piao", some dictionaries have been adjusted to take the pen shape after removing the outer frame when taking numbers from the lower corners, such as: Guo: 60103
origin
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The four corner number detection method is composed ofGao MengdanInvention byWang YunwuIn May 1925, he wrote the Numbering Method and published it by the Commercial Press.
The Chinese people know that the four corner number search system was invented by Wang YunwuWenzhouZhang Yusheng's research achievements.Yusheng's original name is Zhang Zhaolin, ZhejiangWenzhou YongjiaPeople.In the 1930s, Zhang was engaged in coding research and proposed two methods: "four corner coding" and "five strokes and four codes".He communicated with Wang Yunwu, then the chief editor of the Commercial Press, and exchanged views with each other.Soon, Wang Yunwu published the New Dictionary of Four Corner Numbers, whose basic method was the same as that of Zhang Yusheng.
The four corner number search method was born in the early Republic of China, and it has been nearly a hundred years.In the precarious old China, for various reasons, even the intellectuals who paid attention to it could not glorify, popularize and promote it.Therefore, the four corner number search method ushered in its rebirth after ushering in the new China.In the 1950s after the founding of the People's Republic of China, the four corner number search method was popularized.However, due to many defects in the old four corner number character searching method, no scholar has conducted in-depth research and rigorous standardization and sorting on it, plus domestic politics and other reasons, the four corner number character searching method has disappeared.
Industry standards
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On June 16, 2023, the State Press and Publication Administration issued:CY/T 271-2023 Quadrangle number detection[2]。
