[Python知识库]Python统计一个字符串中每个字符出现的次数

# -*- coding: utf-8 -*-

#参考：https://blog.csdn.net/weixin_42153985/article/details/80577597

def strcount(a):
    #定义一个空字典
    b={}
    # 求出字符串的长度
    c=len(a)
    i=0
    while i<c:
        if a[i] in b:
            b[a[i]]+=1
        else:
            b[a[i]]=1
        i+=1
    #遍历字典
    for item in b.items():
        print(item)
if __name__ == '__main__':
#    a="aasdxzs123123sdf"
    ss_1 = 'aggcacggaaaaacgggaataacggaggaggacttggcacggcattacacggaggacgaggtaaaggaggcttgtctacggccggaagtgaagggggatatgaccgcttgg'
    freq = strcount(ss_1)
    print(freq)




#汉字如何处理
#CSDN
#python读取txt文件并统计每个字出现的频率
#https://blog.csdn.net/fu_jian_ping/article/details/88907572?utm_medium=distribute.pc_relevant_t0.none-task-blog-BlogCommendFromMachineLearnPai2-1.nonecase&depth_1-utm_source=distribute.pc_relevant_t0.none-task-blog-BlogCommendFromMachineLearnPai2-1.nonecase

https://blog.csdn.net/fu_jian_ping/article/details/88907572?utm_medium=distribute.pc_relevant_t0.none-task-blog-BlogCommendFromMachineLearnPai2-1.nonecase&depth_1-utm_source=distribute.pc_relevant_t0.none-task-blog-BlogCommendFromMachineLearnPai2-1.nonecase
ps: