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我一直在尋找的String類爲8u40-b25 JDK的源代碼,它包含一個scan: {}
塊:什麼是掃描:Java中的塊?
2557 /* Now check if there are any characters that need to be changed. */
2558 scan: {
2559 for (firstUpper = 0 ; firstUpper < len;) {
2560 char c = value[firstUpper];
2561 if ((c >= Character.MIN_HIGH_SURROGATE)
2562 && (c <= Character.MAX_HIGH_SURROGATE)) {
2563 int supplChar = codePointAt(firstUpper);
2564 if (supplChar != Character.toLowerCase(supplChar)) {
2565 break scan;
2566 }
2567 firstUpper += Character.charCount(supplChar);
2568 } else {
2569 if (c != Character.toLowerCase(c)) {
2570 break scan;
2571 }
2572 firstUpper++;
2573 }
2574 }
2575 return this;
2576 }
這是什麼意思?
喬恩釘了它。但一讀時,我認爲這也是一個關鍵詞。 – jww