Python 字符串统计工具：计算不同字符及其出现次数

def Freq(line): freq_dict = {} for char in line: if char not in freq_dict: freq_dict[char] = 1 else: freq_dict[char] += 1 print(len(freq_dict)) for key in sorted(freq_dict.keys()): print(key, '= ', freq_dict[key])

line = input() Freq(line)