python 运算符及while循环讲解

print()#默认为print(end="n"),想要输出在一行可写为print(end="")

num = 1
while num<10: 
    print(num)  
    num+=1 

age=30
while True:
    input_age = int(input("Age is :"))
    if input_age == age:
        print("It's right.")
        break
    elif input_age > age:
        print("It's bigger.")
    else:
        print("It's smaller.")       
print("End")

num = 1
while num <= 5:
    num += 1   
    print(num)
else:
    print("This is else statement")

row = 1
while row<=9:
    col = 1    
    while col <= row:
        print(  str(col)+"*"+ str(row) +"="+str(col * row), end="t")
        col += 1        
    print()    
    row += 1