最有效的debug工具:println("here")
时间:2025-06-19 来源:互联网
The Legendary Debugger: println("here")
Once upon a time in a land of buggy code, there lived a humble programmer who discovered the most powerful debugging tool known to mankind...
Chapter 1: The Debugging Revelation
"Why is my function returning null?" the programmer cried. After 3 hours of staring at the same 10 lines of code, they had an epiphany:
println("here")
Suddenly, the program worked perfectly. The programmer wept tears of joy.
Chapter 2: The Senior Developer's Secret
A senior developer was reviewing junior code when they noticed:
function calculateTax(income) { println("here1"); if (income > 100000) { println("here2"); return income * 0.3; } println("here3"); return income * 0.2; println("here4"); // This one never gets called }
"Perfect," said the senior. "I see you've mastered advanced debugging techniques."
Chapter 3: The Production Incident
One fateful day, a critical system crashed. The ops team found this in the logs:
here here here here here here here here here here here here here here here here NullPointerException at line 42
"At least we know it got here," said the lead developer while updating their resume.
Chapter 4: The Philosophical Debate
At a programming conference, two developers argued:
Dev A: "Real programmers use debuggers with breakpoints and watches."
Dev B: "Breakpoints? Just sprinkle some println("here") statements like Parmesan cheese on spaghetti code."
The audience applauded. Dev A was never seen again.
Epilogue: The Println Manifesto
And so the legend grew. To this day, when all else fails, when the IDE debugger lies, when Stack Overflow has no answers, programmers whisper the sacred incantation:
println("here");
And lo, the bugs were revealed, the nulls were checked, and the code... well, the code still didn't work, but at least they knew where it failed.
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