今天运行MATLAB，由于处理文件太多出现：Too many files open; check that FILES = 20 in your CONFIG.SYS file

D:\Program Files\Matlab7.0.1\toolbox\matlab\uitools\uiopen.m: Too many files open; check that FILES = 20 in your CONFIG.SYS file.

解决方法：fopen('all');
                  fclose('all');