陳思听python集合set字典dict統計字元數目37,241不同字元數1,251

 STYLE='BORDER: 9PX RED DASHED'>
file = open('金融常識.txt','r',encoding='utf-8')
reading = file.read()
file.close()
print('檔案字元characters數:', len(reading))
mySet = set(reading)#將串列轉成集合,稱她myset得到1251
myDict = dict()  #定義字典dict稱他為 mydict
for j in mySet:
    myDict[j] = 0
for i in reading:
    myDict[i] += 1
for j in mySet:
    print(f"字元「{j}」出現{myDict[j]:,}次數")
print(f'字元數目{len(reading):,}，不同字元數{len(mySet):,}')
#python和其他所有語言不同的特徵 f string格式化字串文字
print(f"陳思听統計左引號(出現次數{mydict['(']:,}")
print(f'陳思听統計右引號)出現次數{mydict[")"]:,}')
print(f'陳思听統計504每題四個選項至少有{504*4:,}')