According to the applying range and designing requirements of editor program,this paper gives three methods to design text buffers:linear,chain and linear-chain structures,and the analysis of their advantages and disadvantages.

• 本文根据编辑程序应用的范围、设计要求的不同给出了三种文本缓冲区的设计方法（线性结构、链式结构和链式线性结构），并分析了各种方法的优缺点；