for循环

for循环的简单使用

for i in range(0,10,2):
    print (i)
list1=[1,2,3,4,5]
for i in list1:
    print (i)

for 嵌套

for i in range(1,9+1):
    for j in range(1,i+1):
        print ("%d*%d=%d\t"%(i,j,i*j),end="")
    print()

break的使用

james_age=18
for i in range(0,10,2):
    age=int(input("input james name:"))
    if age == i:
        print ("你猜对了!!!")
        break
    elif age > i:
        print ("你猜大了！！！")
    elif age < i:
        print ("你猜小了!!!")
print ("你已经试完了!!!,james年龄是{_james_age}".format(_james_age=james_age))