浙教版（2020）信息技术八年级上册 2.11 while循环的应用实例 一课一练

i=1

while i<=49:

print(“♥”)

i=i+1

x=0

for i in range(3)：

for j in range(5)：

x=x+1

print (x)

s=0

for i=1 to 5

s=s+i

next i

For i = 1 To 5

For j = 2 To i

Print "*";

Next j

Next i

For i=1 To 6

    For j=1 To 4

        Print”*”

    Next j

Next i

①p=5 (a+b+p)                ②if a>0 then b=b+1

③t1.text=”请输入密码：”       ④For i=1 to 10 do j=j*2

①   ②   ③   ④