一、问题的提出所有微型计算机都具有字符串处理功能。在这里,字符型变量的长度是可变的。PC—1500型机上,字符型数组变量可定义的长度范围为1—80个字符,每个字符占用一个字节内存空间。该机BASIC语言约定,数值变量只有实数型一种,数据有效位数为10位,每个变量占用8个字节内存空间。因此,对一台具有8KB内存扩充模块的PC—1500型机来说,即便内存中不放任何程序,充其量也只能存放1255个数。然而,在实际工作中,输入的数据或计 First, the question raised All micro-computers have string processing capabilities. Here, the length of the character variable is variable. On the PC-1500 machine, the character array variable can be defined in the range of 1-80 characters in length, each character occupying one byte of memory space. BASIC machine language agreement, numerical variables only a real number type, the data is 10 significant digits, each variable takes up 8 bytes of memory space. Therefore, for a PC-1500 with an 8KB memory expansion module, at most 1255 can be stored at best, even without any program in memory. However, in actual work, the data entered or calculated