Bucla while

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Filip Schouwenaars

DataCamp Instructor

Bucla while

while(condition) {
  expr
}

while(ctr <= 7) {
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Bucla while

while(condition) {
  expr
}

while(ctr <= 7) {
  print(paste("ctr is set to", ctr))
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Bucla while

while(condition) {
  expr
}

while(ctr <= 7) {
  print(paste("ctr is set to", ctr))
  ctr <- ctr + 1
}
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Bucla while

while(condition) {
  expr
}

while(ctr <= 7) {
  print(paste("ctr is set to", ctr))
  ctr <- ctr + 1
}

"ctr is set to 1"
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Bucla while

while(condition) {
  expr
}

while(ctr <= 7) {
  print(paste("ctr is set to", ctr))
  ctr <- ctr + 1
}

"ctr is set to 2"
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Bucla while

while(condition) {
  expr
}

while(ctr <= 7) {
  print(paste("ctr is set to", ctr))
  ctr <- ctr + 1
}

"ctr is set to 7"
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Bucla while

while(condition) {
  expr
}

while(ctr <= 7) {
  print(paste("ctr is set to", ctr))
  ctr <- ctr + 1
}
  • Fără afișare
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Bucla while

ctr <- 1
while(ctr <= 7) {
  print(paste("ctr is set to", ctr))
  ctr <- ctr + 1
}

"ctr is set to 1"
"ctr is set to 2"
...
"ctr is set to 7"

ctr

8
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Bucla while

ctr <- 1
while(ctr <= 7) {
  print(paste("ctr is set to", ctr))
  ctr <- ctr + 1
}
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Buclă while infinită

ctr <- 1
while(ctr <= 7) {
  print(paste("ctr is set to", ctr))

}

"ctr is set to 1"
"ctr is set to 1"
"ctr is set to 1"
"ctr is set to 1"
"ctr is set to 1"
"ctr is set to 1"
"ctr is set to 1"
...
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Instrucțiunea break

ctr <- 1
while(ctr <= 7) {
  if(ctr %% 5 == 0) {
    break
  }
  print(paste("ctr is set to", ctr))
  ctr <- ctr + 1
}

"ctr is set to 1"
"ctr is set to 2"
"ctr is set to 3"
"ctr is set to 4"
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Să exersăm!

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