material/program/python/basics/demo.py

a1 = int(input("input:"))        #    input
a, b = map(int, input().split()) # 读取输入分割并转化
print('%8d'%a1, '\n')                    #    print
# print(objects, sep=' ', end='\n')


# 数据类型
x1 = 123
x2 = 123.123
x3 = True
x4 = "True"

print(x1, "   ", type(x1))
print(x2, "   ", type(x2))
print(x3, "   ", type(x3))
print(x4, "   ", type(x4))
print()


# 运算符
"""
    1.    **
    2.    *  /  %  //
    3.    +  -
    4.    <=  <  >  >=
    5.    <>    ==  !=
    6.    =  %=  /=  //=  -=  +=  *=  **=
    7.    not  or  and
"""

# 条件判断
if (x1==a1) and (x3==True):
    print("OK!!!")
elif x3==False:
    print("x3==False")
else:
    print("x1:", x1)
    print("a1:", a1)
print()


# 循环控制
for i in range(10):            # 逐一访问序列中的元素    
    while i>=9 and i<13:    # 通过条件控制
        print(i)
        i+=1
        continue
        break

# range()    函数  创建一个整数列表
"""
    # 基本格式
    range(start, stop,[step])
    # 开始  结束  步长
    range(5, 1, -1)            # 可做到倒序输出
"""