Java涓殑String.format()鏂规硶鐢ㄤ簬鏍煎紡鍖栧瓧绗︿覆銆傚畠鎺ュ彈涓€涓牸寮忓寲瀛楃涓蹭綔涓虹涓€涓弬鏁帮紝鍚庨潰鍙互璺熼殢浠绘剰鏁伴噺鐨勫弬鏁帮紝鐢ㄤ簬鏇挎崲鏍煎紡鍖栧瓧绗︿覆涓殑鍗犱綅绗︺€?/p>

浠ヤ笅鏄疭tring.format()鏂规硶鐨勫熀鏈敤娉曪細

String formattedString = String.format(format, arg1, arg2, ...);

鍏朵腑锛?code>format鏄竴涓寘鍚崰浣嶇鐨勬牸寮忓寲瀛楃涓诧紝arg1, arg2, ...鏄鏇挎崲鍗犱綅绗︾殑鍙傛暟銆?/p>

涓嬮潰鏄竴浜涘父鐢ㄧ殑鍗犱綅绗︼細

• %s锛氬瓧绗︿覆

• %d锛氬崄杩涘埗鏁存暟

• %f锛氭诞鐐规暟

• %c锛氬瓧绗?/p>

• %b锛氬竷灏斿€?/p>

• %t锛氭棩鏈?鏃堕棿

浠ヤ笅鏄竴浜涚ず渚嬶細

// 鏍煎紡鍖栧瓧绗︿覆
String formattedString = String.format("Hello, %s!", "World");
System.out.println(formattedString);  // 杈撳嚭: Hello, World!
// 鏍煎紡鍖栨暣鏁?/span>
int number = 42;
String formattedNumber = String.format("The answer is %d.", number);
System.out.println(formattedNumber);  // 杈撳嚭: The answer is 42.
// 鏍煎紡鍖栨诞鐐规暟
double pi = 3.14159;
String formattedPi = String.format("Pi is approximately %.2f.", pi);
System.out.println(formattedPi);  // 杈撳嚭: Pi is approximately 3.14.
// 鏍煎紡鍖栨棩鏈?鏃堕棿
Date now = new Date();
String formattedDate = String.format("Current date and time: %tF %tT", now, now);
System.out.println(formattedDate);  // 杈撳嚭: Current date and time: 2022-01-01 12:34:56

璇锋敞鎰忥紝鏍煎紡鍖栧瓧绗︿覆涓殑鍗犱綅绗﹀繀椤讳笌鍙傛暟绫诲瀷鍖归厤锛屽惁鍒欏彲鑳戒細寮曞彂寮傚父銆傝缁嗙殑鍗犱綅绗﹁娉曞拰閫夐」鍙互鍙傝€僇ava鏂囨。涓殑String.format()鏂规硶閮ㄥ垎銆?/p>