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)
myDict = dict()
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{len(reading):,}次數)
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