if not isinstance(n,(int,float)): raise TypeError('bad operand type') sum=0 m=n while n>0: sum=sum+n n=n-1 print('1~%d相加的结果为:%d'% (m,sum)) sum('a') 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 执行结果为: 返回多个值 在Python中可以返回多个值,如下: def sum(n): s...
# 小而精 # 两个数值相加功能 # def add(): # number_one = float(input("请输入第一个数据:")) # number_two = float(input("请输入第二个数据:")) # result = number_one + number_two # print("结果是:" + str(result)) # # add() def add(number_one, number_two): return number_...
def add(a, b): """ 返回两个数的和。 参数: a (int or float): 第一个加数 b (int or float): 第二个加数 返回: int or float: a 和 b 的和 """ return a + b result = add(3, 5) print(result) # 输出: 8 带默认值的参数 def greet(name="Guest"): print(f"Hello, {name...
Functions In Python Python comes with a number of inbuilt function which we use pretty often print(), int(),float(), len() and many more. Besides built-ins we can also create our own functions to do more specific jobs, these are called user-defined functions ...
The value list filter can also be used for Boolean data types. For Boolean data types, this filter contains two values: true and false. These value are used inPythonfor specifying the value. The true value is the first value in the list. For an example, seeAdd Fieldand the...
You can't use the Python async function type for your handler function. Returning a value Optionally, a handler can return a value, which must be JSON serializable. Common return types include dict, list, str, int, float, and bool. What happens to the returned value depends on the invoc...
In other programming languages, we can define a specific set of values. To define infinity, we can use float("inf") to define a positive infinite number and for a negative infinite number, we use float("-inf"). Now, we will look at how it works in Python. Suppose we have a value...
typedeffloatREAL; #define不只是可以为类型取别名,还可以定义常量、变量、编译开关等。 3. 作用域不同 #define没有作用域的限制,只要是之前预定义过的宏,在以后的程序中都可以使用。而typedef有自己的作用域。 voidfun() { #define A int } voidgun() ...
关于typedef 和#define 1)typedef 有的书上在定义变量的时候会出现一些你在程序设计教材中从来没见过的诡异的数据 类型,比如严奶奶书上就有类似于...结构型没有名字,因此用 typedef 给它起个名字是有必要的,但是对于已有的数据类型,如 int,float 等已经有了简洁的名字,还有必要给它起个新名字吗?有必要,但不...
负数的二进制中1的个数 n=sizeof(a++);printf(“%d,%d”,n,a);的输出结果及原因 ‘\0’,’0’的区别 转义字符及其作用 case语句中能不能用float和double及其原因 if else的区别,效率 const和define区别 一.负数的二进制中1的个数 代码实现: 二.sizeof,三目... ...