break函数只是用于跳出for循环么 c语言中，break是跳出一个函数还是一个循环？
break\u8df3\u51fa\u7684\u662fif\u8bed\u53e5\uff0c\u8fd8\u662ffor\u5faa\u73af\uff1fbreak\u8df3\u51fa\u7684\u662ffor\u5faa\u73af\u3002
break \u5728\u4e00\u4e9b\u8ba1\u7b97\u673a\u7f16\u7a0b\u8bed\u8a00\u4e2d\u662f\u4fdd\u7559\u5b57\uff0c\u5176\u4f5c\u7528\u5927\u591a\u60c5\u51b5\u4e0b\u662f\u7ec8\u6b62\u6240\u5728\u5c42\u7684\u5faa\u73af\u3002
1\u3001break\u8bed\u53e5\u5bf9if-else\u7684\u6761\u4ef6\u8bed\u53e5\u4e0d\u8d77\u4f5c\u7528\u3002
2\u3001\u5728\u591a\u5c42\u5faa\u73af\u4e2d\uff0c\u4e00\u4e2abreak\u8bed\u53e5\u53ea\u5411\u5916\u8df3\u4e00\u5c42\u3002
\u5728 C\u8bed\u8a00 \u7684 switch\uff08\u5f00\u5173\u8bed\u53e5\uff09\u4e2d\uff0cbreak \u8bed\u53e5\u8fd8\u53ef\u7528\u6765\u5728\u6267\u884c\u5b8c\u4e00\u4e2a case\uff08\u5206\u652f\uff09\u540e\u7acb\u5373\u8df3\u51fa\u5f53\u524d switch \u7ed3\u6784\u3002
\u6269\u5c55\u8d44\u6599\uff1abreak\u8bed\u53e5\u901a\u5e38\u7528\u5728\u5faa\u73af\u8bed\u53e5\u548c\u5f00\u5173\u8bed\u53e5\u4e2d\u3002\u5f53break\u7528\u4e8e\u5f00\u5173\u8bed\u53e5switch\u4e2d\u65f6\uff0c\u53ef\u4f7f\u7a0b\u5e8f\u8df3\u51faswitch\u800c\u6267\u884cswitch\u4ee5\u540e\u7684\u8bed\u53e5\uff1b
\u5982\u679c\u6ca1\u6709break\u8bed\u53e5\uff0c\u5219\u4f1a\u4ece\u6ee1\u8db3\u6761\u4ef6\u7684\u5730\u65b9\uff08\u5373\u4e0eswitch\uff08\u8868\u8fbe\u5f0f\uff09\u62ec\u53f7\u4e2d\u8868\u8fbe\u5f0f\u5339\u914d\u7684case\uff09\u5f00\u59cb\u6267\u884c\uff0c\u76f4\u5230switch\u7ed3\u6784\u7ed3\u675f\u3002
\u5f53break\u8bed\u53e5\u7528\u4e8edo-while\u3001for\u3001while\u5faa\u73af\u8bed\u53e5\u4e2d\u65f6\uff0c\u53ef\u4f7f\u7a0b\u5e8f\u7ec8\u6b62\u5faa\u73af\u3002
\u800c\u6267\u884c\u5faa\u73af\u540e\u9762\u7684\u8bed\u53e5\uff0c\u901a\u5e38break\u8bed\u53e5\u603b\u662f\u4e0eif\u8bed\u53e5\u8054\u5728\u4e00\u8d77\u3002\u5373\u6ee1\u8db3\u6761\u4ef6\u65f6\u4fbf\u8df3\u51fa\u5faa\u73af\u3002
\u53c2\u8003\u8d44\u6599\uff1abreak\u51fd\u6570\u2013\u767e\u5ea6\u767e\u79d1
break\u662f\u4ece\u5faa\u73af\u4e2d\u8df3\u51fa\uff0c\u5982\u8981\u4ece\u51fd\u6570\u4e2d\u8df3\u51fa\uff0c\u53ef\u4ee5\u7528return\u3002
break \u5728\u4e00\u4e9b\u8ba1\u7b97\u673a\u7f16\u7a0b\u8bed\u8a00\u4e2d\u662f\u4fdd\u7559\u5b57\uff0c\u5176\u4f5c\u7528\u5927\u591a\u60c5\u51b5\u4e0b\u662f\u7ec8\u6b62\u6240\u5728\u5c42\u7684\u5faa\u73af\u3002
1\u3001break\u8bed\u53e5\u5bf9if-else\u7684\u6761\u4ef6\u8bed\u53e5\u4e0d\u8d77\u4f5c\u7528\u3002
2\u3001\u5728\u591a\u5c42\u5faa\u73af\u4e2d\uff0c\u4e00\u4e2abreak\u8bed\u53e5\u53ea\u5411\u5916\u8df3\u4e00\u5c42\u3002
\u5728 C\u8bed\u8a00 \u7684 switch\uff08\u5f00\u5173\u8bed\u53e5\uff09\u4e2d\uff0cbreak \u8bed\u53e5\u8fd8\u53ef\u7528\u6765\u5728\u6267\u884c\u5b8c\u4e00\u4e2a case\uff08\u5206\u652f\uff09\u540e\u7acb\u5373\u8df3\u51fa\u5f53\u524d switch \u7ed3\u6784\u3002
\u6269\u5c55\u8d44\u6599\uff1a
break\u8bed\u53e5\u901a\u5e38\u7528\u5728\u5faa\u73af\u8bed\u53e5\u548c\u5f00\u5173\u8bed\u53e5\u4e2d\uff0c\u5f53break\u7528\u4e8e\u5f00\u5173\u8bed\u53e5switch\u4e2d\u65f6\uff0c \u53ef\u4f7f\u7a0b\u5e8f\u8df3\u51faswitch\u800c\u6267\u884cswitch\u4ee5\u540e\u7684\u8bed\u53e5; \u5982\u679c\u6ca1\u6709break\u8bed\u53e5, \u5219\u5c06\u6210\u4e3a\u4e00\u4e2a\u6b7b\u5faa\u73af\u800c\u65e0\u6cd5\u9000\u51fa\uff0c\u5982\u4e0b\uff1a
1\u3001break\u5982\u679c\u7528\u4e8e\u5faa\u73af\u662f\u7528\u6765\u7ec8\u6b62\u5faa\u73af\u3002
2\u3001break\u5982\u679c\u7528\u4e8eswitch\u4e2d\uff0c\u5219\u662f\u7528\u6765\u7ec8\u6b62switch\u3002
3\u3001break\u4e0d\u80fd\u76f4\u63a5\u7528\u4e8eif\u8bed\u53e5\uff0c\u9664\u975e\u662f\u5faa\u73af\u5185\u7684\u4e00\u4e2a\u5b57\u53e5\u3002
4\u3001break\u7528\u5728\u591a\u5c42\u5faa\u73af\u4e2d\uff0c\u8868\u793a\u9000\u51fa\u91cc\u4ed6\u6700\u8fd1\u7684\u4e00\u6b21\u5faa\u73af\u3002
\u53c2\u8003\u8d44\u6599\u6765\u6e90\uff1a\u767e\u5ea6\u767e\u79d1-break\u51fd\u6570
如果想跳出多个嵌套，只能使用return或goto。
break是结束整个循环过程，用 contiune 是结束本次循环。。
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