问Python If语句使用'and‘和'in’EN一、前言 本系列文章，代码运行展示，将使用PyCharn进行运行。 二、循环语句 1、遍历循环 格式： for 变量 in range(stop) ==>遍历0~stop-1 for 变量 in range(start,stop) ==>遍历start~stop-1 for 变量 in range(start,stop,step) ==>遍历start~stop-1，默认步长为1 例如： print('格式1结果') for...
and:if(条件1 and 条件2 ): 只有条件1和条件2都为True的时候,结果才为True >>> first_number = 5 >>> second_number = 8 >>> first_number == 5 and second_number == 8 True >>> first_number > 5 and second_number == 8 False 只有and左右两边的条件都为真的时候,结果才为真True,否则为...
\n")for number in range(100): if (number%3 ==2) and (number%5 ==3) and (number%7 ==2): # 判断是否符合条件 print("答曰：这个数是",number) # 输出符合条件的数 运行程序，输出结果如下：今有物不知其数，三三数之剩二，五五数之剩三，七七数之剩二，问几何？答曰：这个数...
Python if...else StatementAn if statement can have an optional else clause. The else statement executes if the condition in the if statement evaluates to False.Syntaxif condition: # body of if statement else: # body of else statementHere, if the condition inside the if statement evaluates to...
while True: username = input("输入用户名") paword = input("输入密码") if username == 'admin' and paword == '123456': print('login') break continue continue 则可以跳过本轮循环,进入下一轮循环。他也常常和 if 搭配使用: songs = ['传奇',...
It should work, if you remove the 150 in input and add one ) on the first line. Add a : at the end of the if statement. And you should indent the print statement. 11th Dec 2021, 8:40 PM Paul + 2 Remove 105 and put : after line 2 11th Dec 2021, 8:51 PM Paul ...
“表达式”(expression)是一个单纯的运算过程,总是有返回值;”语句”(statement)是执行某种操作,没有返回值。函数式编程要求,只使用表达式,不使用语句。也就是说,每一步都是单纯的运算,而且都有返回值。 原因是函数式编程的开发动机,一开始就是为了处理运算(computation),不考虑系统的读写(I/O)。”语句”属于对...
run(statement, globals, locals) File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/bdb.py", line 580, in run exec(cmd, globals, locals) File "<string>", line 1, in <module> File "<stdin>", line 4, in fun ZeroDivisionError: division by zero >>> 如果用 pdb 模块...
If statement: a =33 b =200 ifb > a: print("b is greater than a") Try it Yourself » In this example we use two variables,aandb, which are used as part of the if statement to test whetherbis greater thana. Asais33, andbis200, we know that 200 is greater than 33, and so ...
Two string values and an integer value are initialized in the program. Multiple “OR” operators are used with the combination of “if statement” to compare three different conditions. Whenever one of the conditions in the “if statement” is met, the ”OR” operator returns a ”True” valu...