line=int(input('请输入菱形行数:')) for i in range(1,line+1): for j in range(1,line+1-i): print(' ',end='') for k in range(1,2*i): print('*',end='') print() for i in range(1,line): for j in range(1,i+1): print(' ',end='') for k in range(1,2*line-2*i): print('*',end='') print()本回答被网友采纳