Python 程式來統計給定字串中的單詞數?
假設我們有一個“字串”和一個“單詞”,我們需要使用 python 在字串中查詢該單詞出現的次數。這就是我們本節將要做的工作,統計給定字串中的單詞數並打印出來。
統計給定字串中的單詞數
方法 1:使用 for 迴圈
#方法 1:使用 for 迴圈
test_stirng = input("String to search is : ") total = 1 for i in range(len(test_stirng)): if(test_stirng[i] == ' ' or test_stirng == '\n' or test_stirng == '\t'): total = total + 1 print("Total Number of Words in our input string is: ", total)
結果
String to search is : Python is a high level language. Python is interpreted language. Python is general-purpose programming language Total Number of Words in our input string is: 16
#方法 2:使用 while 迴圈
test_stirng = input("String to search is : ") total = 1 i = 0 while(i < len(test_stirng)): if(test_stirng[i] == ' ' or test_stirng == '\n' or test_stirng == '\t'): total = total + 1 i +=1 print("Total Number of Words in our input string is: ", total)
結果
String to search is : Python is a high level language. Python is interpreted language. Python is general-purpose programming language Total Number of Words in our input string is: 16
#方法 3:使用函式
def Count_words(test_string): word_count = 1 for i in range(len(test_string)): if(test_string[i] == ' ' or test_string == '\n' or test_string == '\t'): word_count += 1 return word_count test_string = input("String to search is :") total = Count_words(test_string) print("Total Number of Words in our input string is: ", total)
結果
String to search is :Python is a high level language. Python is interpreted language. Python is general-purpose programming language Total Number of Words in our input string is: 16
以上是其他兩種查詢使用者輸入字串中的單詞數的辦法。
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