Python (3)-loop statement: Jump out of a multilayer loop from the inner layer

Jump out of the multilayer loop: three-layer loop, the innermost layer directly jumps out 3 layers

Method One:

In Python, the function runs to return and stops, so you can use this feature to write functions as functions to terminate multiple loops

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defwork():                                  #定义函数    for i inrange(5):        print("i=", i)        forj inrange(5):            print("--j=", j)            fork inrange(5):                ifk<2:                    print("------>k=", k)                else:                    returni,j,k             print(work())

　　

Method Two:
Define variables, change the state of variables, do not meet the conditions, loop out

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break_flag=Falsefori inrange(10):    print("爷爷层")    forj in range(10):        print("爸爸层")        fork inrange(10):            print("孙子层")            ifk==3:                break_flag=True                break#跳出孙子层循环，继续向下运行        ifbreak_flag==True:            break#满足条件，运行break跳出爸爸层循环，向下运行    ifbreak_flag==True:        break #满足条件，运行break跳出爷爷层循环，结束全部循环，向下运行print("keep going...")

Method Three:

While loop statement, define condition, condition change, Loop end

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break_flag=Falsecount=0whilebreak_flag==False:    print("爷爷层...")    whilebreak_flag==False:        print("爸爸层...")        whilebreak_flag==False:            ifcount<5:                print("孙子层...")                count+=1            else:                break_flag=Trueprint("keep going...")

　　

Python (3)-loop statement: Jump out of a multilayer loop from the inner layer