python跳出双层循环 python双for循环怎么执行 # for双循环,内层循环先循环,外层循环再循环 for i in range(1,4): for j in range(1,3): print('i=',i,' ','j=',j) 执行结果: 1. 2. 3. 4. 5. 6. # for 双层循环关联 for i in range(1,4): for j in range(1,i+1): print('i='...