# 要转换的字符串
myStr = "200"

# 显示字符串及其类型
print("String = ",myStr)
print("Type= ", type(myStr))

# 使用int()将字符串转换为整数，并显示其类型
myInt = int(myStr)
print("\nInteger = ", myInt)
print("Type = ", type(myInt))

String =  200
Type=  <class 'str'>

Integer =  200
Type =  <class 'int'>

# 要转换的字符串
myStr = "500"

# 显示字符串及其类型
print("String = ",myStr)
print("Type= ", type(myStr))

# 将字符串转换为浮点数
myFloat = float(myStr)
print("\nFloat = ", myFloat)
print("Type = ", type(myFloat))

# 将浮点数转换为整数
myInt = int(myFloat)
print("\nInteger = ", myInt)
print("Type = ", type(myInt))

String =  500
Type=  <class 'str'>

Float =  500.0
Type =  <class 'float'>

Integer =  500
Type =  <class 'int'>

# 字符串
myStr = "752"

# 将字符串转换为十进制数字
myDecimal = int(myStr, 10)
print("Decimal = ", myDecimal)

# 将字符串转换为八进制数字
myOctal = int(myStr, 8)
print("Octal   = ",myOctal )

Decimal = 752
Octal   =  056

# 需要转换的字符串
myStr = "500"

# 显示字符串及其类型
print("字符串 = ",myStr)
print("类型= ", type(myStr))

# 将字符串转换为整数
myInt1 = int(myStr)
print("\n整数 (base10) = ", myInt1)
print("类型 = ", type(myInt1))

# 将字符串转换为八进制整数
myInt2 = int(myStr, base=8)
print("\n整数 (base8) = ", myInt2)
print("类型 = ", type(myInt2))

字符串 =  500
类型=  <class 'str'>
整数 (base10) =  500
类型 =  <class 'int'>

整数 (base8) =  320
类型 =  <class 'int'>