Shell 編程基礎之 Break, Continue 練習

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一、文法

break：用來跳出迴圈。break N 可以跳出多層迴圈

break

break N

continue：用來跳過迴圈。continue N 可以跳過多層迴圈

continue

continue N

二、詳細與區別

1. break
   

   for var1 in 1 2 3do  for var2 in 0 5  do    if [ "$var1" -eq "2" -a "$var2" -eq "0" ]; then      break 2    else      echo "$var1 $var2"    fi  donedone

   [email protected]:~$ ./test.sh1 01 5

2. continue
   

   for var1 in 1 2 3do  for var2 in 0 5  do    if [ "$var1" -eq "2" -a "$var2" -eq "0" ]; then      continue 2    else      echo "$var1 $var2"    fi  donedone

   [email protected]:~$ ./test.sh1 01 53 03 5

Shell 編程基礎之 Break, Continue 練習