Method for inputting Chinese characters by key shape code derived from sound and shape

The characteristic lies in that, according to the rule of initial consonant or vowel of part radical, half Chinese character to take the radical of corresponding key as sound kind radical according to the rule of the shape of part, radicla and half Chinese character similar to the shape of alphabet (capital letter or small letter) to take the radical of corresponding key as shape kind radical, the radical similar in sound or in meaning to the above mentioned sound kind radical or shape kind radical is defined as derivative radical. A common key with the original radical is used. The advantages: easy to learn, easy to memorize the radical, low rate of duplicating code, simple in identifying code and quick input.