统计英文字母数
..............\.dep.inc
..............\ab.txt
..............\build
..............\.....\Debug
..............\.....\.....\MinGW-Windows
..............\.....\.....\.............\main.o
..............\.....\.....\.............\main.o.d
..............\dist
..............\....\Debug
..............\....\.....\MinGW-Windows
..............\....\.....\.............\da_zuo_ye_2.exe
..............\main.cpp
..............\Makefile
..............\nbproject
..............\.........\configurations.xml
..............\.........\Makefile-Debug.mk
..............\.........\Makefile-impl.mk
..............\.........\Makefile-Release.mk
..............\.........\Makefile-variables.mk
..............\.........\Package-Debug.bash
..............\.........\Package-Release.bash
..............\.........\private
..............\.........\.......\configurations.xml
..............\.........\.......\private.properties
..............\.........\.......\private.xml
..............\.........\project.properties
..............\.........\project.xml