# 请补全空格处代码 row = int(input("Enter the number of rows: ")) #**********SPACE********** for n in ______: # 对每一行进行迭代,n的取值依次为1,2,3...,row #**********SPACE********** x = "*" *( _______) # 每一行的*串 #**********SPACE********** y = " " * ( _______) # 每一行的空格串 print(y + x)