计算上大写字母，小写字母和其他字符

Question

编写一个程序，该程序接受句子作为控制台输入并计算上大写字母的数量，较低的案例字母和其他字符。

假设以下输入提供给程序：你好世界;！＃

Answer 1

由于这个问题听起来像是编程作业，所以我写了这是一种更奇怪的方式。这是标准的Python 3，而不是Jes。

#! /usr/bin/env python3
import sys
upper_case_chars = 0
lower_case_chars = 0
total_chars = 0
found_eof = False
# Read character after character from stdin, processing it in turn
# Stop if an error is encountered, or End-Of-File happens.
while (not found_eof):
    try:
        letter = str(sys.stdin.read(1))
    except:
        # handle any I/O error somewhat cleanly
        break
    if (letter != ''):
        total_chars += 1
        if (letter >= 'A' and letter <= 'Z'):
            upper_case_chars += 1
        elif (letter >= 'a' and letter <= 'z'):
            lower_case_chars += 1
    else:
        found_eof = True
# write the results to the console
print("Upper-case Letters: %3u" % (upper_case_chars))
print("Lower-case Letters: %3u" % (lower_case_chars))
print("Other Letters:      %3u" % (total_chars - (upper_case_chars + lower_case_chars)))

请注意，您应该修改代码以自己处理线结束字符。目前，它们被视为"其他"。我也没有处理二进制输入的处理，可能 str（）将失败。