task1

x1,y1=1.2,3.57
x2,y2=2.26,8.7
print("{:-^40}".format("输出1"))
print("x1={},y1={}".format(x1,y1))
print("x2={},y2={}".format(x2,y2))

print("{:-^40}".format("输出2"))
print("x1={:.1f},y1={:.1f}".format(x1,y1))
print(‘x2={:.1f},y2={:.1f}‘.format(x2,y2))

print("{:-^40}".format("输出3"))
print("x1={:<15},y1={:.1f}".format(x1,y1))
print(‘x2={:<15},y2={:.1f}‘.format(x2,y2))