一个自学的小白----------------------Python while练习

#while 练习打印一个5*5矩形y = 1while(y <= 5):    x = 1    while(x<=5):        print("*",end=" ")        x+=1    print("")    y += 1

运行结果

#while 练习 打印一个直角三角形y = 1while (y <= 5):    x  = 1    while(x <= y):        print("*",end="")        x += 1    print()    y += 1

运行结果

#while练习   打印99乘法表y = 1while(y <= 9):    x = 1    while(x <= y):        print("%d * %d = %d"%(y,x,x*y),end=" ")        x+= 1    print()    y += 1

运行结果

#while练习  打印一个菱形y = 1z = 1#上面部分while(y <= 10):    x = 1    n = 1    m = 9    #打印空格    while(m >= y):        print(" ",end=" ")        m -= 1    while(x <= y):        print("*",end=" ")        x += 1    while(n < y):        print("*",end=" ")        n += 1    print()    y += 1#下面部分while(z <= 10):    x = 9    n = 9    m = 1    #打印空格    while(m <= z):        print(" ",end=" ")        m += 1    while(x >= z):        print("*",end=" ")        x -= 1    while(n > z):        print("*",end=" ")        n -= 1    print()    z += 1

运行结果