Python程序计算字符串中的空格数

给定一个字符串，任务是编写一个Python程序来计算字符串中的空格数。

例子：

Input: "my name is geeks for geeks"
Output: number of spaces = 5

Input: "geeksforgeeks"
Output: number of spaces=0

方法：

• 来自用户的输入字符串
• 用零初始化计数变量
• 运行 for 循环 i 从 0 到字符串的长度
• 在 for 循环中，检查是否 s[i] == 空白，然后将计数增加 1
• 在 for 循环之外，打印计数

示例 1：

Python3

# create function that
# return space count
def check_space(string):
     
    # counter
    count = 0
     
    # loop for search each index
    for i in range(0, len(string)):
         
        # Check each char
        # is blank or not
        if string[i] == " ":
            count += 1
         
    return count
 
# driver node
string = "Welcome to geeksforgeeks"
 
# call the function and display
print("number of spaces ",check_space(string))

输出：

number of spaces  2

示例 2：

蟒蛇3

# create function that
# return space count
def check_space(string):
     
    # counter
    count = 0
     
    # loop for search each index
    for i in string:
         
        # Check each char
        # is blank or not
        if i == " ":
            count += 1
         
    return count
 
# driver node
string = "Welcome to geeksforgeeks, Geeks!"
 
# call the function and display
print("number of spaces ",check_space(string))
    

输出：

number of spaces  3

示例 3：使用 count()函数。

蟒蛇3

# Create function that
# return space count
def check_space(Test_string):
    return Test_string.count(" ")
 
 
# Driver function
if __name__ == "__main__":
    Test_string = "Welcome to geeksforgeeks, Geeks!"
 
    # Call the function and display
    print(f"Number of Spaces: {check_space(Test_string)}")

输出：

Number of Spaces: 3