要将字符串转换为数字,有多种方法。让我们一一看看。
使用 int() 将字符串转换为数字
示例
在此示例中,我们将使用 int() 方法将字符串转换为数字 -
# String to be converted
myStr = "200"
# Display the string and it's type
print("String = ",myStr)
print("Type= ", type(myStr))
# Convert the string to integer using int() and display the type
myInt = int(myStr)
print("nInteger = ", myInt)
print("Type = ", type(myInt))
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输出
String = 200
Type=
Integer = 200
Type =
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使用 float() 将字符串转换为数字
示例
在此示例中,我们将使用 float() 方法将字符串转换为浮点数,然后使用 int() 方法将浮点数转换为整数 -
# String to be converted
myStr = "500"
# Display the string and it's type
print("String = ",myStr)
print("Type= ", type(myStr))
# Convert the string to float
myFloat = float(myStr)
print("nFloat = ", myFloat)
print("Type = ", type(myFloat))
# Convert the float to int
myInt = int(myFloat)
print("nInteger = ", myInt)
print("Type = ", type(myInt))
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输出
String = 500
Type=
Float = 500.0
Type =
Integer = 500
Type =
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将字符串转换为数字base10和base8
示例
在此示例中,我们将使用带有基本参数的 int() 将字符串转换为数字。
# String to be converted
myStr = "500"
# Display the string and it's type
print("String = ",myStr)
print("Type= ", type(myStr))
# Convert the string to int
myInt1 = int(myStr)
print("nInteger (base10) = ", myInt1)
print("Type = ", type(myInt1))
# Convert the string to int
myInt2 = int(myStr, base=8)
print("nInteger (base8) = ", myInt2)
print("Type = ", type(myInt2))
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输出
String = 500
Type=
Integer (base10) = 500
Type =
Integer (base8) = 320
Type =
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