python打印各種三角形

# 打印左下角三角形：for i in range(10):之后，range(0,i)
# 打印右上角三角形：在左下角的基礎上，將"－"變成" "空格

for i in range(10):
    for j in range(0,i):
        print("-",end=" ")

    for j in range(i,10):
        print("$", end=" ")

    print("")

print("-------------------------")

 

# 打印左上角三角形：for i in range(10):之后，range(0,10-i)
# 打印右下角三角形：在左上角的基礎上，將"－"變成" "空格

for i in range(10):
    for j in range(0, 10 - i):
        print("-", end=" ")
    for k in range(10 - i, 10):
        print("$", end=" ")

    print("")

 

# 打印上三角，只需要將"－",去掉

for i in range(10):
    for j in range(0, 10 - i):
        print(end=" ")
    for k in range(10 - i, 10):
        print("$", end=" ")

    print("")

 

# 打印倒三角，只需要將"－",去掉

for i in range(10):
    for j in range(0,i):
        print(end=" ")

    for j in range(i,10):
        print("$", end=" ")

    print("")