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// This sentence can not write, write a warning, if the following statement error, write this sentence

struct label *Jumpto;

for (int i=0; i< ; i++) {

NSLog(@ "0000====%d", i);

if (i==5) {

gotojumpto;

}

NSLog(@ "1111====%d", i);

jumpto:NSLog(@ " jump to this line ");

}

Run results

2014-12-17 17:46:43.465 mustdemo[1335:613765] 0000====0

2014-12-17 17:46:43.466 mustdemo[1335:613765] 1111====0

2014-12-17 17:46:43.466 mustdemo[1335:613765] jump to this line

2014-12-17 17:46:43.466 mustdemo[1335:613765] 0000====1

2014-12-17 17:46:43.466 mustdemo[1335:613765] 1111====1

2014-12-17 17:46:43.466 mustdemo[1335:613765] jump to this line

2014-12-17 17:46:43.466 mustdemo[1335:613765] 0000====2

2014-12-17 17:46:43.466 mustdemo[1335:613765] 1111====2

2014-12-17 17:46:43.466 mustdemo[1335:613765] jump to this line

2014-12-17 17:46:43.467 mustdemo[1335:613765] 0000====3

2014-12-17 17:46:43.467 mustdemo[1335:613765] 1111====3

2014-12-17 17:46:43.467 mustdemo[1335:613765] jump to this line

2014-12-17 17:46:43.467 mustdemo[1335:613765] 0000====4

2014-12-17 17:46:43.467 mustdemo[1335:613765] 1111====4

2014-12-17 17:46:43.467 mustdemo[1335:613765] jump to this line

2014-12-17 17:46:43.468 mustdemo[1335:613765] 0000====5

2014-12-17 17:46:43.469 mustdemo[1335:613765] jump to this line

2014-12-17 17:46:43.469 mustdemo[1335:613765] 0000====6

2014-12-17 17:46:43.469 mustdemo[1335:613765] 1111====6

2014-12-17 17:46:43.470 mustdemo[1335:613765] jump to this line

2014-12-17 17:46:43.471 mustdemo[1335:613765] 0000====7

2014-12-17 17:46:43.472 mustdemo[1335:613765] 1111====7

2014-12-17 17:46:43.472 mustdemo[1335:613765] jump to this line

2014-12-17 17:46:43.472 mustdemo[1335:613765] 0000====8

2014-12-17 17:46:43.472 mustdemo[1335:613765] 1111====8

2014-12-17 17:46:43.472 mustdemo[1335:613765] jump to this line

2014-12-17 17:46:43.472 mustdemo[1335:613765] 0000====9

2014-12-17 17:46:43.473 mustdemo[1335:613765] 1111====9

2014-12-17 17:46:43.473 mustdemo[1335:613765] jump to this line

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